14.2_practicepp

14.2_practicepp - Mat120 - Homework Practice Section 14.2

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Unformatted text preview: Mat120 - Homework Practice Section 14.2 Name___________________________________ Class Hour:______________________________ Find the composition. 1) If f(x) = x + 6 and g(x) = 8x - 10, find (f g)(x) 1) 2) If f(x) = 5x2 - 2x and g(x) = 3x, find ( g f)(x) 2) Determine whether the pair of functions f and g are inverses of each other. 3) f(x) = 6x and g(x) = x 6 A) not inverses B) inverses 3) Find the inverse of the one-to-one function. 4) f(x) = -5x - 7 4) Page 1 of 2 5) f(x) = (x + 3)3 5) Determine if the graph represents a function that has an inverse function and why? 6) y 10 6) -10 10 x -10 Why: A) has an inverse B) does not have an inverse Use the graph of the function to draw the graph of the inverse function. 7) y 10 7) 5 -10 -5 -5 5 10 x -10 Page 2 of 2 Answer Key Testname: 14.2_PRACTICEPP 1) 2 2x - 1 2) 15x2 - 6x 3) B 4) f-1(x) = x + 7 -5 5) f-1(x) = 6) B 7) 3 x-3 y 10 5 -10 -5 -5 5 10 x -10 Page 3 of 2 ...
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This note was uploaded on 05/05/2008 for the course MAT 120/222/10 taught by Professor None during the Spring '08 term at ASU.

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