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

Only A make sure your (x) doesn’t repeat only (y) can repeat

Answer 2

Answer: only A

all of A’s inputs are different but B’s repeats 4 and 9 making it not a function, so its only A