Which of the sets of ordered pairs represents a function? **easy** BRAINLIEST
A= {(2,-2). (5, -5), (-2, 2), (-5, 5)}
B = {(4, 2), (4, -2). (9, 3), (9, -3)}

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

A function means that “for only x, there is one and only one y”. If you look at these sets, you can see that the statement is true for A, but not for B. In B, you can see that an x-value of 4 has two y-values (2 and -2) and a value of 9 also has two y-values. Therefore, only A is a function.