Question

Select the true statement about this relation.

A. The relation is a function, because for each y-value, only one x-value exists.

B. The relation is a function, because for each x-value, only one y-value exists.

C. The relation is not a function, because x-values, such as -39.4, -10.3, and 0 each correspond to two different y-values.

D. The function is repetitive, because certain x-values, such as -39.4, -10.3, and 0 each have two different y-values.

Answer 1

This is NOT a function because x = 0 maps to both y = 25.5 and y = 15 at the same time. This occurs with other values, which points to choice C being the answer.

Answer 2

Okay yeah I see why its not a function, thanks!