Question

Does this set of ordered pairs represent a function? why or why not?
{(-2,2), (-1,2), (3,-1), (3,1), (4,11)}

A. yes because every x-value corresponds to exactly one y-value

B: No, because two of the y-values are the same

c: No, because one x-value corresponds to two different y-values

d. yes, because there are two x-values that are the same