Question

Which of the sets of ordered pairs represents a function?

A = {(2, −2), (5, −5), (−2, 2), (−5, 5)}
B = {(4, 2), (4, −2), (9, 3), (9, −3)}

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

Answer 1

I'm thinking only B because A has a repeated y value with a different x value and it can't be the same right?

Answer 2

@inkyvoyd @uri @jim_thompson5910

Answer 3

@ganeshie8 @Compassionate @ParthKohli