Question

Which of the sets of ordered pairs represents a function?

A = {(1, −5), (8, −5), (8, 7), (2, 9)}
B = {(7, −4), (7, −2), (6, −3), (−9, 5)}

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

Answer 1

Neither A nor B, see in A 8 has two different images and in B 7 has two different images but in a function, each element in the domain set must have unique image

Answer 2

so D is the answr

Answer 3

@texaschic101

Answer 4

correct