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 there are two x-values that are the same.
B. No, because two of the y-values are the same.
C. Yes, because every x-value corresponds to exactly one y-value.
D. No, because one x-value corresponds to two different y-values.
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