Quiz 7A: Relations and Functions
Contributed by: Eckardt

 1. A) 8B) 3C) 1D) 02. A relation is a set of _____________.A) functionsB) ordered pairsC) frogsD) y-values3. Domain is a list of all of the ____ values of a relation or function.A) xB) zC) y4. Range is a list of all of the ____ values of a relation or function.A) xB) yC) 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, -1, 4}D) {0, 2}6. What is the range of this function: {(4, 8), (9, 2), (-3, -4)}A) {8, 2, -4}B) {8}C) {(4, 8), (9, 2), (-3, -4)}D) {4, 9, -3}7. A) DB) CC) AD) B8. Which of the following relations is a function?A) {(0, 0), (0, 1), (1, 2)}B) {(3, 1), (4, 1), (3, 2)}C) {(0, 0}, (1, 2), (2, 3)}D) {(1, 1), (1, 2), (1, 3)}9. Which of the following relations is a function?A) {(1, 2), (-1, 3), (-1, 8)}B) {(3,7), (3, 6), (5, 3)}C) {(1, 2), (2, 2), (3, 4)}D) {(0, 4), (5, 6), (5, 8)}10. A) DB) BC) AD) C11. Given f(x) = 2x + 1, find f(-3).12. A) 8B) 3C) 5D) 113. A) BB) DC) AD) C
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