For which function is f(x) not equal to f -1(x)? a. f(x)= -x b. f(x)=2/x c. f(x)=2x d. f(x)=2-x

A function and its inverse are mirror images of each other across the line y=x. Since you want the function to be its own inverse, you want the function to have symmetry about the line y=x. All of these functions have that symmetry except ...

... c. f(x) = 2x

In the attached graph, the purple line shows no symmetry about y=x.

40% off the regular price is the correct answer.

step-by-step explanation:

i think is g(1)=-1.

hope that i can