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12 July, 09:07

If f (x) = - 3x+3, then f^-1 (x) =

+3
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  1. 12 July, 09:37
    0
    1. replace f (x) with y

    2. solve for x

    3. replace x wieth f^-1 (x) and y with x

    f (x) = - 3x+3

    y=-3x+3

    y-3=-3x

    divide both sides by - 3

    (3-y) / 3=x

    f^-1 (x) = (3-x) / 3
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