Answer: The correct graph is (B).
Step-by-step explanation: We are given to select the graph that does NOT represent a function.
We know that
a graph will represent a function if one value of x will not correspond to more than one value of y.
From the given four graphs, we notice that
only graph B contains points with same x-values and different y-values. That is, one value of x corresponds to more than one value of y.
Some of those points are (x, y) = (3, 1), (3, 2), (3, 3), (3, 4), . . .etc.
Therefore, the graph B does NOT represent a function.
Thus, option (B) is CORRECT.
