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Math Help - [SOLVED] Find the inverse

  1. #1
    Junior Member moonman's Avatar
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    [SOLVED] Find the inverse

    Find the inverse of:

    g(x) = 2^(x-3) + 4
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  2. #2
    Senior Member
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    Quote Originally Posted by moonman View Post
    Find the inverse of:

    g(x) = 2^(x-3) + 4

    y = 2^{x-3} + 4

    x <-> y

    x = 2^{y-3} + 4

    x -4 = 2^{y-3}

    ln(x-4) = ln(2) *(y-3)

    ln(x-4)/ln(2) = y-3

    3+ [ln(x-4)/ln(2)] = y
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