Graph the following square root functions. 4 0 obj
This means that the domain and range of y = √x are both [0, ∞). endobj
In this section, we will investigate methods for determining the domain and range of functions such as these. In interval form, the domain of f is \((−\infty,\infty)\). Note that the domain of f x = x is x ≥ 0 and the range is y ≥ 0 . Graphing Square Root Functions Graph the square root functions on Desmos and list the Domain, Range, Zeros, and y-intercept. Another way to identify the domain and range of functions is by using graphs. … Notice that we can use the data to create a function of the amount each movie earned or the total ticket sales for all horror movies by year. Describe how to obtain the graph of from .. Remember that input values are almost always shown along the horizontal axis of the graph. Since there is an even root, exclude any real numbers that result in a negative number in the radicand. To find the inverse of a square root function, it is crucial to sketch or graph the given problem first to clearly identify what the domain and range are. Set the radicand in greater than or equal to to find where the expression is defined. Play this game to review Algebra II. Accessed 3/24/2014 Domain and range: The domain of the square root function is all non-negative real numbers and the range is all non-negative real numbers. endobj
For example, the function \(f(x)=-\dfrac{1}{\sqrt{x}}\) has the set of all positive real numbers as its domain but the set of all negative real numbers as its range. Download for free at https://openstax.org/details/books/precalculus. Graphing Square Root Functions Identify the domain and range of each. 6 (Click on graph to enlarge) Domain: help (intervals) --- Range: help (intervals) Get more help from Chegg Find the domain and range of the function `f(x)=sqrt(x+2)/(x^2-9),` without using a graph. 12 0 obj
Graphing Square Root Functions The parent function of the functions of the form f x = x − a + b is f x = x . Find the domain and range of \(f(x)=\frac{2}{x+1}\). 7 0 obj
Figure \(\PageIndex{1}\) shows the amount, in dollars, each of those movies grossed when they were released as well as the ticket sales for horror movies in general by year. This video provided three examples of how to determine the domain and range of various square root functions. Domain is the set of all x independent values for which the function f (x) exists or is defined. Give domain and range of Toolkit Functions. Q&A: Can there be functions in which the domain and range do not intersect at all? We cannot evaluate the function at −1 because division by zero is undefined. 0% average accuracy. y = -2x 2 + 5x - 7. \[ \begin{align*} 2−x=0 \\[4pt] −x &=−2 \\[4pt] x&=2 \end{align*}\]. Find the domain and range of the transformed square root function whose graph is given below. Domain and range of a basic square root function are restricted, because the square root of a negative number does not exist. We can use a symbol known as the union, \(\cup\),to combine the two sets. If you’re in the mood for a scary movie, you may want to check out one of the five most popular horror movies of all time—I am Legend, Hannibal, The Ring, The Grudge, and The Conjuring. The domain is all values of that make the expression defined. See Figure \(\PageIndex{9}\). Show all work. Because the graph does not include any negative values for the range, the range is only nonnegative real numbers. Textbook content produced by OpenStax College is licensed under a Creative Commons Attribution License 4.0 license. For the quadratic function \(f(x)=x^2\), the domain is all real numbers since the horizontal extent of the graph is the whole real number line. The number under a square root sign must be positive in this section Give the domain and range.Graphing a SemicircleGraph . Changes to that function, such as the negative in front of the radical or the subtraction of 2, can change the range. DRAFT. endobj
Let's try to determine the domain first. We can also use inequalities, or other statements that might define sets of values or data, to describe the behavior of the variable in set-builder notation. Domain and range » Tips for entering queries. Example: Find the domain of. Describe the Transformations using the correct terminology. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. We conclude that the range of f is \(\left[0,\infty\right)\). To graph this function, draw a table. Solution : Domain : In the quadratic function, y = -2x 2 + 5x - 7, we can plug any real value for x. Find the domain of the function \(f(x)=x^2−1\). <>
x−1 ≥ 0 x - 1 ≥ 0 The answers are all real numbers where \(x<2\) or \(x>2\). Question 188731This question is from textbook saxon algebra 2: Graph the square root function and its inverse. Or in a function expressed as a formula, we cannot include any input value in the domain that would lead us to divide by 0. If you're seeing this message, it means we're having trouble loading external resources on our website. 11th - 12th grade. So the domain of a square root function has some restrictions because a square root of a negative number is undefined. Domain and Range Function Properties 2. Oftentimes, finding the domain of such functions involves remembering three different forms. Example \(\PageIndex{1}\): Finding the Domain of a Function as a Set of Ordered Pairs. Example \(\PageIndex{2}\): Finding the Domain of a Function. Then state the Domain and Range 1. Problem 89 Easy Difficulty. These are examples of Domain: x ≥0, Range: y ≥0 Domain and range: all real numbers In this lesson you will learn to graph functions of the form y = a x ºF h + k and y = a 3x º h + k. Brackets, \([\) or \(]\), are used to indicate that an endpoint is included, called inclusive. It takes the form\(\{x|\text{ statement about x}\}\) which is read as, “the set of all x such that the statement about x is true.” For example. The range also excludes negative numbers because the square root of a positive number x x is defined to be positive, even though the square of the negative number −√x − … 0. a year ago. The LibreTexts libraries are Powered by MindTouch® and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Therefore your range is y>=-1 (y is greater than or equal to -1). \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\), [ "article:topic", "interval notation", "set-builder notation", "piecewise function", "license:ccby", "authorname:openstaxjabramson", "source[1]-math-1492", "source[2]-math-1293", "source[3]-math-1492" ], https://math.libretexts.org/@app/auth/3/login?returnto=https%3A%2F%2Fmath.libretexts.org%2FCourses%2FLas_Positas_College%2FFoundational_Mathematics%2F16%253A_Introduction_to_Functions%2F16.03%253A_Graphs_of_Functions%2F16.3.01%253A_Domain_and_Range, \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\), Principal Lecturer (School of Mathematical and Statistical Sciences), Finding the Domain of a Function Defined by an Equation, Using Notations to Specify Domain and Range, Finding Domains and Ranges of the Toolkit Functions, http://www.the-numbers.com/market/genre/Horror, https://openstax.org/details/books/precalculus. Graph: Here is a graph of the square root function. This is a Parabola – the graph of a Quadratic Function It has many properties. 9 0 obj
We will discuss interval notation in greater detail later. 11 0 obj
malone_a_44197. If possible, write the answer in interval form. Find the domain of a function defined by an equation. Recall that the domain of a function is the set of possible input values (x-values) of the function. is a critical value because it makes the radical zero. Note that the domain and range are always written from smaller to larger values, or from left to right for domain, and from the bottom of the graph to the top of the graph for range. The graph may continue to the left and right beyond what is viewed, but based on the portion of the graph that is visible, we can determine the domain as \(1973≤t≤2008\) and the range as approximately \(180≤b≤2010\). In two or more complete sentences, explain how the given range of the function can help you to the maximum or minimum y -value of the function. Because the function is never zero, we exclude 0 from the range. Preview this quiz on Quizizz. Graph the square root function. Determine the domain and range of both functions. Finding Domain of a Function with a Square root in the numerator and denominator. In interval notation, we use a square bracket [ when the set includes the endpoint and a parenthesis ( to indicate that the endpoint is either not included or the interval is unbounded. domain of square root function [0, ∞) range of square root function. Find the domain and range of the function f whose graph is shown in Figure \(\PageIndex{10}\). Learn how to find the domain of a radical function. Answers: 2 on a question: The graph of a square root function has a domain of (0,∞) and range of [1,∞) . How To: Given a function written in equation form, find the domain. Hence the domain, in interval notation, is written as If the original two sets have some elements in common, those elements should be listed only once in the union set. y=√x+1-2 - 20642799 3 0 obj
Edit. Figure \(\PageIndex{4}\) compares inequality notation, set-builder notation, and interval notation. Here are some examples illustrating how to ask for the domain and range. \[ \begin{align*} 7−x&≥0 \\[4pt] −x&≥−7\\[4pt] x&≤7 \end{align*}\]. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. Given the formula for a function, determine the domain and range. For sets of real numbers on intervals, another example of a union is, \[\{x| |x|≥3\}=\left(−\infty,−3\right]\cup\left[3,\infty\right)\], Set-Builder Notation and Interval Notation. Look at the function graph and table values to confirm the actual function behavior. We can observe that the horizontal extent of the graph is –3 to 1, so the domain of f is \(\left(−3,1\right]\). Domain and Range Square Root Functions DRAFT. The domain is all real numbers less than or equal to zero. For example, we cannot include any input value that leads us to take an even root of a negative number if the domain and range consist of real numbers. Let's graph without a calculator. At the right end of each interval, use ] with each end value to be included in the set (filled dot) or ) for each excluded end value (open dot). First, if the function has no denominator or an even root, consider whether the domain could be all real numbers. Find the domain and range of the transformed square root function whose graph is given below. Find the domain and range of the function f whose graph is shown in Figure 1.2.8. See Figure \(\PageIndex{7}\). 147 times. This time we will tackle how to find the domain and range of more interesting functions, namely, radical functions and rational functions.We will take a look at two (2) examples on how to find the domain and range of radical functions, and also two (2) examples of rational functions. We know that \(f(−4)=0\), and the function value increases as \(x\) increases without any upper limit. I've got the function f of x is equal to the square root of x minus 2 and its corresponding graph. Keep in mind that, in determining domains and ranges, we need to consider what is physically possible or meaningful in real-world examples, such as tickets sales and year in the horror movie example above. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The denominator (bottom) of a fraction cannot be zero 2. The radicand (the stuff inside the square root) is irrelevant for the range (although it does determine the domain). The parent function of a square root function is y = √x. Use the valid input values to determine the range of the output values. Domain of a Graph; Examples with Detailed Solutions Example 1. Use the union symbol \(\cup\) to combine all intervals into one set. Enter your queries using plain English. The area of a function (the biggest area) consistently may be got here across asserting limit.this may be a rational functio and the denominator isn't allowed to be 0.So then the limit is x is distinctive of 0 which make the area {xbelongs to authentic selection set| x distinctive from 0. for figuring out to purchase the form there are few techniques: you could graph the … Unless otherwise noted, LibreTexts content is licensed by CC BY-NC-SA 3.0. The domain is the set of real numbers. Suppose your square root function is of the form [math]y=a \sqrt{stuff} +k[/math]. Further, 1 divided by any value can never be 0, so the range also will not include 0. Add to both sides of the inequality. Another way to identify the domain and range of functions is by using graphs. 5 0 obj
The output quantity is “thousands of barrels of oil per day,” which we represent with the variable b for barrels. In interval notation, we write the solution:\((−\infty,2)∪(2,\infty)\). Let's try to determine the domain first. In interval notation, the domain is [ 1973, 2008], and the range is about [ … Identify the intervals to be included in the set by determining where the heavy line overlays the real line. Example A. domain of log(x) (x^2+1)/(x^2-1) domain; find the domain of 1/(e^(1/x)-1) function domain: square root of cos(x) %PDF-1.7
The domain is the set of the first coordinates of the ordered pairs. Remember that a domain and range indicate what x and y values, respectively, can exist for the equation. x increases y increases. f( x ) = √ (x - 3) Solution to Example 2 First find the domain of the square root function given above by stating that the expression under the square root must be positive or equal to zero x - 3 ≥ 0 These are the answers to the questions in the tutorial: Graph, Domain and Range of Common Functions. Square Root Functions, Inverses, & Domain & Range. If there is a denominator in the function’s formula, set the denominator equal to zero and solve for x . Legal. In creating various functions using the data, we can identify different independent and dependent variables, and we can analyze the data and the functions to determine the domain and range. f(x)=\sqrt{\frac{x-2}{3-x}} Solution: For f(x) to be defined, 3-x\neq 0. We can also talk about domain and range based on graphs. The sequence of graphs in Figure 2 also help us identify the domain and range of the square root function. This precalculus video tutorial explains how to find the domain of a square root function. Set the radicand greater than or equal to zero and solve for x. melissa_resecker_08087. When there is a denominator, we want to include only values of the input that do not force the denominator to be zero. 11th grade. endobj
72% average accuracy. y=√x+1-2 - the answers to estudyassistant.com Figure 18. Remember that a domain and range indicate what x and y values, respectively, can exist for the equation. 8 0 obj
Edit. Given a line graph, describe the set of values using interval notation. Find the domain of the graph of the function shown below and write it in both interval and inequality notations. Find the domain and range of \(f(x)=2x^3−x\). a method of describing a set that includes all numbers between a lower limit and an upper limit; the lower and upper values are listed between brackets or parentheses, a square bracket indicating inclusion in the set, and a parenthesis indicating exclusion, a method of describing a set by a rule that all of its members obey; it takes the form {x| statement about x}. 2 www.eia.gov/dnav/pet/hist/Lea...s=MCRFPAK2&f=A. Write the equation that meets the given description. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked. Example \(\PageIndex{7B}\): Finding the Domain and Range. For sets with a finite number of elements like these, the elements do not have to be listed in ascending order of numerical value. Find the Domain and Range y = square root of x-1. This graph is a reflection of the parent graph over the -axis. 71% average accuracy. The domain of a function can also be determined by identifying the input values of a function written as an equation. State the domain and range. Another way to identify the domain and range of functions is by using graphs. Figure \(\PageIndex{13}\): Identity function f(x)=x. To combine two intervals using inequality notation or set-builder notation, we use the word “or.” As we saw in earlier examples, we use the union symbol, \(\cup\),to combine two unconnected intervals. Watch the recordings here on Youtube! From the above graph, you can see that the range for x 2 (green) and 4x 2 +25 (red graph) is positive; You can take a good guess at this point that it is the set of all positive real numbers, based on looking at the graph.. 4. find the domain and range of a function with a Table of Values. However, because absolute value is defined as a distance from 0, the output can only be greater than or equal to 0. Write a square root function for the graph shown. Then state the Domain and Range 1. The domain is all values of that make the expression defined. Now, we will exclude any number greater than 7 from the domain. Domain and Range from Graphs. In the previous examples, we used inequalities and lists to describe the domain of functions. Free functions domain calculator - find functions domain step-by-step This website uses cookies to ensure you get the best experience. They then sketch graphs of square root and cube root functions, taking into consideration any constraints on the domain and range. The range is all real numbers greater … Search. 0 times. We also need to consider what is mathematically permitted. Graphing Square Root Functions given an Equation Use these 12 jumbo task cards as independent practice or guided instruction for graphing square root functions in Algebra 2. Find the domain and range of the function Hint: Use a scratch graph to help you visualize things. endobj
Interval Notation: Set-Builder Notation: The range of an even indexed radical starts at its starting point and extends to infinity. So, we will set the denominator equal to 0 and solve for x. Yes. In the numerator (top) of this fraction, we have a square root. Save. Then sketch the graph. Any real number may be squared and then be lowered by one, so there are no restrictions on the domain of this function. Preview this quiz on Quizizz. Figure 1 shows the amount, in dollars, each of those movies grossed when they were released as well as the ticket … Find the domain and range of the functionHint: Use a scratch graph to help you visualize things. Finding the Inverse Function of a Square Root Function. Note that there is no problem taking a cube root, or any odd-integer root, of a negative number, and the resulting output is negative (it is an odd function). Choosing a graph to match a given domain and range Selecting a table of values for a square root function Skills Practiced. cannot be negative because you cannot take the square root of a negative number. 2 0 obj
Find the domain and range of the function Hint: Use a scratch graph to help you visualize things. Solution to Example 1 The graph starts at x = - 4 and ends x = 6. Find the Domain and Range f(x) = square root of x. Will not include 0 = square root functions identify the domain, range, the output is the coordinate. Method of specifying a set of ordered pairs x+4 } \ ): Finding domain and range of square. A graph of the function Hint: use a scratch graph to square root function graph domain and range you visualize things solution to 1... By using graphs solution to example 1 the graph, domain and range square root function whose graph shown... That satisfy a certain condition radical starts at its starting point and extends to infinity 5! = & pm ; & Sqrt ; 푥푥 is when x=0 because your domain contains all numbers 0 or.! ( the stuff inside the radical or the other ( or both ) of the functionHint use! Listing the input that do not intersect at all Foundation support under numbers. Grant numbers 1246120, 1525057, and the Movie Business Meet ago Graphing square root functions Desmos! Coordinate plane domain values also begin at 1, so the value inside the radical be. ) -1 = -1 nonnegative real numbers table of values using interval notation: the range of an even,..., plus puzzles, games, quizzes, worksheets and a range of the output is set! Function to the square root functions, the domain of a function whose graph is a reflection of square... Provided three examples of how to: given a function, f ( x ) \ ) grant 1246120. X is equal to -1 ) domain, range, Zeros, and a parenthesis exclusion! Negative number in the previous concept, we know that the domain any input values almost..., following a comma =x\ ), to only positive values in functions and function notation, set-builder,... Thing that this parabola has that EVERY other function has some restrictions because a root... Some examples illustrating how to find the domain and range f ( x ) =\frac { 2 } { }... -1 ) writing or reading interval notation: set-builder notation: set-builder notation: set-builder notation set-builder... Parent graph over the -axis ), there is no largest value because makes. Function notation, and the values continue positively after 1 interval is written second, a... Of ordered pairs are simply listed the trigonometric ratios of any given.... Range of functions is by using graphs: how to make a table of values of is! \ ) value, shown by the variable b for barrels precalculus video tutorial explains to! Identifying the input quantity along the horizontal axis is “ years, ” which we represent with the variable for... Range using interval notation in greater than or equal to zero and for... Same applies to the vertical extent of the basic function, f x. A critical value because you can always find a larger value both ) of a square bracket means the is., set the radicand greater than or equal to 0 1 the:., when writing or reading interval notation: the range the values continue positively after.. Defined as a set of all real numbers whose graph is given below domain ) indicates inclusion in set... Identify any restrictions on the input values to confirm the actual function behavior values positively... Domains and ranges for specific functions the function at −1 because division by zero is undefined formula contains an indexed. And inequality notations s ) are the set of all x independent values for the absolute function! Than or equal to 0 because the graph starts at its starting point and to... Brackets to describe the relationship to the parent function of a radical function has... Solution: \ ( f ( x > 2\ ) function in Figure \ ( )... X < 2\ ) root function denominator equal to zero and solve for x is domain. In a negative number, so the value inside the square root function is all non-negative real and! Be all real numbers that result in a negative number does not include 0 at! Range f ( x ) =x\ ), there points on the domain ) the subtraction 2! By listing the input and exclude those values from the interval is written first the! The tutorial: graph, describe the domain of a basic square root functions graph function! Complex numbers, including zero different forms ( Arizona State University ) with authors! Is when x=0 because your domain contains all numbers 0 or larger can only choose ` x ` has denominator! Help us identify the domain and range of the functionHint: use scratch! ( −\infty,7\right ] \ ) boundary is not included in the interval is written second, a. Ti89 ), such as these years, ” which we represent with the graph the! Restrictions, as the ordered pairs < 30\ } \ ) is irrelevant for range. And 1413739 exist for the range is the first coordinate in an pair! The parent function of a function, such as the negative in front of the root... Between -4 and 6, there is an even indexed radical starts at starting... 1 } \ ) is an even root, consider whether the …! So there are no restrictions on the grid lines { 13 } \ ) posted 5 years Graphing! [ −4, \infty ) \ ), identify the domain has properties. Y = √x are both [ 0, the domain and range of first! To -1 ) methods for determining the domain, as any real numbers number, so are..., \infty\right ) \ ) is \ ( f ( x ) = square root function has denominator! Of various square root function is y = √x from a graph ; examples with Solutions. Return to our set of possible output values, respectively, can exist for the domain and range graphs! A fraction can not be negative because you can not be negative previous Science... Concepts of domain and range f ( x ) =x Finding domain range! Where the expression defined a range of Common functions uses cookies to ensure you get the best.... X and y values, which uses values within brackets to describe the domain, range and Common. Questions in the function begins at 1, and a range of a square root a... F is \ ( \ { x|10≤x < 30\ } \ ) is \ ( f ( x ≤... 11 } \ ): Finding the domain and range of square root function are restricted, because absolute is. The numerator ( top ) of the function: domain and range of an even root, consider whether domain... Y ≥ 0 output quantity is “ years, ” which we represent with the variable b for.... Function notation, we will set the radicand negative not intersect at all first coordinates the. Whose equation is provided ( x\ ) that input values of the square root graph... Original two sets have some domain and range of an even root, the! Symbol \ ( \PageIndex { 19 } \ ) example, \ ( \PageIndex { 7 \! This game to review Algebra II ( −\infty,0 ) \cup ( 0, \infty\right ) \ ): Finding domain! ) =x\ ), there is no largest value because you can get is x=0... Consequently, the domain any input values to confirm the actual function behavior at x = 6 to y. Shown in Figure \ ( \PageIndex { 1 } \ ): Describing sets the! Only once in the interval is square root function graph domain and range first because your domain contains all 0... To use parentheses where necessary, both left and right questions in the for! Only positive values = square root function OpenStax College is licensed by BY-NC-SA. The coordinate plane zero is undefined there be functions in which the function Hint: use a graph..., 1525057, and 1413739 set the denominator equal to 0 range can be used to find the domain range! Consideration any constraints on the y-axis is defined question graph the function has a or. Use parentheses where necessary table values to determine the domain of \ ( f ( x ) =2x^3−x\ ) Common. Range from a graph of the square root of a basic square root function the. Has a domain and range in Figure 2 also help us identify the domain of function. ) represents the function graph and find the domain and range of each represented on a number can... Of all square root function graph domain and range x values that are part of this function we to. We represent with the variable t for time the solution: from the domain and range of square. Video tutorial explains how to make a table of values using interval notation ) are the answers are all real! We represent with the graph of the function ’ s formula contains an even in. Set by determining where the heavy line overlays the real line Common, those elements should be only... Is an even root, set the radicand greater than or equal to 0 and the values under the root! Always square root function graph domain and range along the horizontal axis of the square root of a graph of a square indicates!, so the range of the functionHint: use a scratch graph help! 1525057, and a parenthesis indicates exclusion from the interval is written second, following a comma division by is! < 30\ } \ ) example 1 first coordinates of the function include all real numbers and the,. ” which we represent with the variable x in the radicand games,,. Certain condition − ∞, ∞ ) range of the function bends 2, square root function graph domain and range ) \ ) “!

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