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3 May, 08:49

Find the inverse of the function f (x) = 2x - 4.

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  1. 3 May, 11:09
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    F (x) = 2x - 4

    y = 2x - 4

    x = 2y - 4

    x + 4 = 2y

    (x + 4) / 2 = y

    y = (x + 4) / 2

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