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Math Help - inverse function

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

    Is that right?
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  3. #3
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    Quote Originally Posted by Ian1779 View Post
    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.
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  4. #4
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    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?
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  5. #5
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    Try y = (x-1)^{-3}.
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