Question

Which of the sets of ordered pairs represents a function?

A = {(1, −2), (3, −5), (5, 2), (7, 5)}

B = {(4, 2), (4, −2), (9, 3), (9, −3)}
Only A Only B Both A and B Neither A nor B

Answer 1

niether a or b
a function does not have repeating numbers and in both it has one number down twice

Answer 2

medal? if i helped