Question

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

Answer 1

The inverse of F(X) is a function.

For something to be a function, a vertical line must not intersect the graph more than once. Since, the horizontal line doesn't intersect the F(X) graph twice, this means that the vertical line won't intersect with the inverse of the graph