Question

If f(x)=3/(x-3), then f^-1(x)=
A. x-3/3
B. x+3/x
C. 3/(x+3)
D. 3((x+1)/x)
E. No inverse exists

Answer 1

I did the math and I found the inverse. However, I do not see the inverse on the set of answers....

Answer 2

For the inverse, f(x) is the same as y.
So y = 3/(x-3).

To find the inverse, exchange y's for x's and x's for y's, and solve for y.

Answer 3

I did that and stumbled upon y=(3+x)+3. I don't know if I'm doing this wrong or not....

Answer 4

Sorry (3/x)+3