What Is The Domain Of Y X 2 4x 5
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What is the domain of y x 2 4x 5. To better understand why the function is defined for all real numbers see its graph. As a parabola and consequently a polynomial the function 4 x 2 is defined for all real numbers there is no point on its domain where the function is undefined. Domain ℝ range 9 y 1 0 mccarty lv 4 4 years ago one million c they are valid extensive style as a results of fact they don t have the comparable area which makes it a function and a relation as a results of fact the it could make an equation 2 a the. The range is the set of all valid values.
The domain of the expression is all real numbers except where the expression is undefined. Use the graph. Then y sqrt 4 0 2 2 so the function is defined on 2 2. The domain of the expression is all real numbers except where the expression is undefined.
6385372 a racket is fired vertically into the air at 40 m s. Graph 4 x 2 10 10 5 5 the range is also. X in rr complete the square putting the function in vertex form y x 2 2 4 1 y x 2 2 3 hence the minimum of the function is y 3 so we can say that the range is y 3 as for the domain any value of x can be passed to the function so. All real numbers range.
4 oo lets begin by finding the domain of the function. In this case there is no real number that makes the expression undefined. In this case there is no real number that makes the expression undefined. Tap for more steps.
The expression 5t 40t 2p a. Thus the graph of y sqrt 4 x 2 is a semicircle with radius 2 and domain. Locate the vertex of the parabola. 2 2 start by solving the equation 4 x 2 0 then 2 x 2 x 0 x 2 now select a test point let it be x 0.
The domain is x in 0 4 the range is f x in 0 2 for the domain what s under the square root sign is 0 therefore 4x x 2 0 x 4 x 0 let g x sqrt x 4 x we can build a sign chart color. Locate the vertex of the parabola. The domain of the expression is all real numbers except where the expression is undefined.
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