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

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

welshfella · Answer

a function would NOT have 2 or more ordered pairs where for the same x value there is a different value of y.

anonymous · Answer

OH I totally forgot thats such a major clue thank you!

welshfella · Answer

yw

anonymous · Answer

function....
a value of x should have only one value of y