Test 1F10

# Test 1F10 - Math 111 Pretest y The graph of y = f(x is given 1 −3 −2 −1 −1 1 2 x 3 −2 Choose the graph for each of the following

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Unformatted text preview: Math 111 Pretest y The graph of y = f (x) is given: 1 −3 −2 −1 −1 1 2 x 3 −2 Choose the graph for each of the following functions. An answer may be used more than once. 1. y = f (|x|) 2. y = f (−x) 3. y = 2f (2x) 4. y = |f (x)| 5. y = f (x + 1) 6. y = f (x) − 1 7. y = f ( x ) 2 8. y = −f (x) y 1 A. −3 −2 −2 x 3 −2 1 2 x 3 −2 −1 −1 −2 −3 −2 x 3 −3 −2 x 3 −3 2 x 3 1 2 x 3 1 2 x 3 y y 1 H. 2 1 −1 −1 −2 y 1 x 3 1 F. 2 2 y −1 −1 −2 1 1 −1 −1 1 y 1 G. −2 D. −1 −1 −2 −3 −2 1 E. −3 2 y −1 −1 −2 −3 1 1 C. 1 B. −1 −1 −2 −3 y −2 −1 −1 −2 For problems 9-12 choose the equation that yields the given graph. 9. y A. y = 2(x + 1)2 B. y = (x + 1)2 + 1 C. y = (x + 1)2 − 1 D. y = (x − 1)2 + 1 E. y = (x − 1)2 − 1 2 1 −3 −2 −1 −1 1 x x √ A. y = √ 3 + x B. y = √x + 3 C. y = √x − 3 D. y = 3 − x √ E. y = 3 − x x A. y = |x + 1| + 1 B. y = |x − 1| + 1 C. y = |x + 1| − 1 D. y = |x − 1| − 1 E. y = |x − 2| + 1 y 2 10. 1 −2 −1 −1 1 2 3 y 2 11. 1 −3 −2 −1 −1 1 2 y 12. 2 1 −1 −1 −2 −3 −4 1 x A. y = 1 − 3x B. y = 3(x − 1) C. y = 2x − 1 D. y = 3x − 1 1 E. y = 3 x − 1 Problems 13 – 15 refer to the function f given by {(0, −1), (1, 8), (2, 10), (3, −11), (4, 14)}. 13. Find the inverse f −1 of the function. A. {(0, −1), (−1, 8), (−2, 10), (−3, −11), (−4, 14)} B. {(−1, 0), (8, 1), (10, 2), (−11, 3), (14, 4)} C. {(−1, 4), (8, 3), (10, 2), (−11, 1), (14, 0)} D. {(4, 14), (3, −11), (2, 10), (1, 8), (0, −1)} 14. What is the domain of the inverse function f −1 ? A. {14} B. {−1, 8, 10, −11, 14} C. {0, 1, 2, 3, 4} D. {−4, −3, −2, −1, 0} 15. What is the range of the inverse function f −1 ? A. {14} B. {−1, 8, 10, −11, 14} C. {0, 1, 2, 3, 4} D. {−4, −3, −2, −1, 0} 16. The function f (x) = 5x + 5 is one-to-one. Find the inverse of f . A. f −1 (x) = 1 x + 5 5 1 B. f −1 (x) = 5 x − 5 C. f −1 (x) = 1 x + 1 5 Problems 17 – 19 refer to the function f given by f (x) = D. f −1 (x) = 1 x − 1 5 8x + 4 . 3x − 5 17. Find the inverse of f . A. f −1 (x) = 5x + 4 3x + 8 B. f −1 (x) = 5x + 4 3x − 8 C. f −1 (x) = 5x − 4 3x + 8 D. f −1 (x) = 5x − 4 3x − 8 18. What is the domain of the function f ? 5 A. {x|x = 3 } B. {x|x = − 5 } 3 C. {x|x = 3 } 5 3 D. {x|x = − 5 } E. All real numbers D. {y |y = − 8 } 3 E. All real numbers 19. What is the range of the function f ? Hint: Use f −1 . A. {y |y = 3 } 8 B. {y |y = − 3 } 8 8 C. {y |y = 3 } y 20. The graph of a one-to-one function f is shown to the right. Find the graph of f −1 . 1 −3 −2 −1 −1 1 2 x 3 −2 y 1 A. −3 y −2 −1 −1 −2 1 B. 1 2 x 3 −3 y −2 −1 −1 −2 1 C. 1 2 x 3 −3 y −2 −1 −1 −2 1 D. 1 2 x 3 −3 −2 −1 −1 −2 1 2 x 3 1. A 2. D 3. C 4. G 5. H 6. B 7. E 8. F 9. C 10. D 11. C 12. B 13. B 14. B 15. C 16. D 17. B 18. A 19. C 20. B ...
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## This note was uploaded on 10/24/2011 for the course MATH 111 taught by Professor Stuff during the Fall '11 term at BYU.

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