Question

can anyone help?
Which of the sets of ordered pairs represents a function?

A = {(−4, 5), (1, −1), (2, −2), (2, 3)}

B = {(2, 2), (3, −2), (9, 3), (9, −3)}
Only A Only B Both A and B Neither A nor B

Answer 1

ok so what comes after that?

Answer 2

no

Answer 3

forget "linear" whatever that means
pick the one with no repeat in the first coordinates
that is all

Answer 4

ok

Answer 5

if you see a number repeated ,then not a function
if all the first numbers are different, then it is a function

Answer 6

so nether a or b is a function right?

Answer 7

@satellite73

Answer 8

A is not because of the repeated 2's

Answer 9

B is not because of the repeated 9s

Answer 10

so right, neither A or B

Answer 11

ok thank you so much :)

Answer 12

yw