Question

Kendra drew the graph of G(x). She noticed that it was possible to draw a horizontal line that intersected the graph in two points. Which best describes what that means?
A.The inverse of G(x) is not a function.
B.The inverse of G(x) is a function.
C.G(x) is a function.
D.G(x) is not a function.

Answer 1

Answer: option A. The inverse of G(x) is not a function.

Because that means that for some values of x, say x = a and x = b, G(a) = G(b) = Z, then you cannot tell whether the value that generates Z  corresponds to a or b.