Which of the following sets of data does NOT represent a function?Set Axy63845792Set Bxy0318283-7Set Cxy1072011309407Set Dxy39228-321

A relation is a function if each input x is paired with only one output y. In Set D, the input x = 2 is paired with y = 2 and y = 1, so it does not represent a function. The other sets have no repeated input paired with different outputs.

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