Question

The graph of F(x) can be flipped over a certain line to produce the graph of its inverse. What is the equation of that line?
A. y = -x
B. y = x
C. x = 0
D. y = 0

Answer 1

http://en.wikipedia.org/wiki/Inverse_function

scroll down until the picture on the right is a graph, with blue, red and doted lines. the doted lines is what you seek.

Answer 2

Thank you