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Math Help - One-to-one function

  1. #1
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    One-to-one function

    Assume g is a one-to-one function.
    If g(x) = x2 + 4x with x -2, find g -1(96).

    Giving me hell, any help would be great. Thanks!
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by TheOriginal08 View Post
    Assume g is a one-to-one function.
    If g(x) = x2 + 4x with x -2, find g -1(96).

    Giving me hell, any help would be great. Thanks!
    what do you mean "with x -2"?

    Let g^{-1}(96) = x

    \Rightarrow g(x) = 96

    so set g(x) = 96 and solve for x
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  3. #3
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    Not sure with the "with x-2" thats whats throwing me off. Thanks for your reply!
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