Question

(04.01)

Which of the sets of ordered pairs represents a function? (4 points)
A = {(-4, 5), (1, -1), (2,-2), (2,3)}
B = {(2, 2), (3,-2), (9,3), (9, -3)}
O Only A
O Only B
O Both A and B
Neither A nor B

Answer 1

A function can be any set of points where one input is equal to one output. You cannot have two X values with the same Y value, for example.

I believe the answer is neither because in both sets you can see they have different Y values for the X values 2 and 9.