Question

Which set of ordered pairs represents a function?

A = {(3, -5), (4, 6), (-3,9), (2, 7)}
B = {(2, 4), (-1, -7), (5, 6) (4,3)}

A) Only A
B) Neither A nor B
C) Only B
D) Both A and B

Answer 1

D (not 100% sure) if there are multiple of the same x then it's not a function. In both sets they don't have any repeating x's please don't not rely on this answer cause I am not positive that is correct

Answer 2

B. is the answer I believe since most are not functions