On amber’s math test, she was asked whether the equation y=1/2y^2 represents a function. she made the following table and graph.

amber concluded that the equation represents a function.
which additional point could be added to the graph to show amber that the equation does not represent a function?
a. (–2, 2)
b. (0, 0)
c. (8, –4)
d. (8, 8)