Question

For which function is f(x) equal to f^-1(x)

A. f(x)=x+6/x-6
B. f(x)=x+2/x-2
C. f(x)=x+1/x-1
D. f(x)=x+5/x+5

Answer 1

the answer is C. Doing the inverse function steps f(x) = f^-1(x) for this function.