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)}

Only A
Only B
Both A and B
Neither A nor B

Answer 1

only B
..................

Answer 2

it's neither

Explanation:

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

in A, there are double twos.

B = {(2, 2), (3, −2), (9, 3), (9, −3)}

in B, there are double nines