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11 April, 21:45

If f (x) = 1/9x-13, then f^-1 (x) =

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  1. 11 April, 21:55
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    f^-1 (x) = 9x+117

    Step-by-step explanation:

    hello:

    let f (x) = y so : y = 1/9 x-13

    calculate : x you have : 1/9x = y+13 so : x = 9 (y+13) = 9y+117

    If f (x) = 1/9x-13, then f^-1 (x) = 9x+117
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