Quiz 7A: Relations and Functions
 1. A) 3B) 1C) 0D) 82. A relation is a set of _____________.A) y-valuesB) frogsC) functionsD) ordered pairs3. Domain is a list of all of the ____ values of a relation or function.A) zB) yC) x4. Range is a list of all of the ____ values of a relation or function.A) yB) xC) z5. What is the domain of this function: {(0, 1), (2, 3), (-1, 3), (4, 5)}?A) {1, 3, 5}B) {3}C) {0, 2}D) {0, 2, -1, 4}6. What is the range of this function: {(4, 8), (9, 2), (-3, -4)}A) {8}B) {8, 2, -4}C) {4, 9, -3}D) {(4, 8), (9, 2), (-3, -4)}7. A) AB) CC) BD) D8. Which of the following relations is a function?A) {(3, 1), (4, 1), (3, 2)}B) {(1, 1), (1, 2), (1, 3)}C) {(0, 0), (0, 1), (1, 2)}D) {(0, 0}, (1, 2), (2, 3)}9. Which of the following relations is a function?A) {(1, 2), (2, 2), (3, 4)}B) {(0, 4), (5, 6), (5, 8)}C) {(3,7), (3, 6), (5, 3)}D) {(1, 2), (-1, 3), (-1, 8)}10. A) AB) BC) CD) D11. Given f(x) = 2x + 1, find f(-3).12. A) 3B) 5C) 1D) 813. A) CB) DC) BD) A
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Answer Key

1.D   2.D   3.C   4.A   5.D   6.B   7.C   8.D   9.A   10.C   11. -5   12.A   13.B

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