Question

Which of the sets of ordered pairs represents a function?

A = {(−4, 5), (1, −1), (2, −2), (2, 3)}
B = {(2, 2), (3, −2), (9, 3), (9, −3)}

Answer 1

A

Explanation:

Because a is a functioning pair.

Answer 2

A

Explanation:

a function must not repeat the input and B repeats 9 twice and you get two different outputs.