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22 October, 06:45

If f (x) = 4x-8, what isf-1 (x) ?

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  1. 22 October, 10:12
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    F (x) = 4x-8

    f (x) = y=4x-8

    f^-1 (x) = ?

    x=4y-8

    x+8=4y

    f^-1 (x) = y=1/4x+2
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