In Exercises 15 and 16, which sets of ordered pairs represent functions from A to B?

Chapter 1, Problem 15

(choose chapter or problem)

Testing for Functions In Exercises 15 and 16, which sets of ordered pairs represent functions from A to B? Explain.

A = {0, 1, 2, 3} and B = {−2, −1, 0, 1, 2}

(a) {(0, 1), (1, −2), (2, 0), (3, 2)}

(b) {(0, −1), (2, 2), (1, −2), (3, 0), (1, 1)}

(c) {(1, 0), (−2, 3), (−1, 3), (0, 0)}