# Math Help - inverse function

1. ## inverse function

if y = x^(-1/3) + 1 , what is the inverse function?

Y^3 = x+1 (?)

and the inverse function is f^-1(x) = x^3 - 1 (?)

Thank you.

2. So the function is (1/ cube root of x) +1

Is that right?

3. Originally Posted by Ian1779
So the function is (1/ cube root of x) +1

Is that right?

Not sure. It seems the graphs should look like reflections of each other across y=x, but they don't.

4. The graph of my function looks like you've described. Apart from the undefined part at x=-1.

Do the graphs look like they might reflect through y=-x?

5. Try $y = (x-1)^{-3}$.