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22 November, 19:35

What is the inverse of the function f (x) = 2x + 1

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  1. 22 November, 20:14
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    To find inverse function,

    Let y = f (x)

    y = 2x + 1

    Now make x the subject.

    2x = y - 1

    x = (y - 1) / 2

    Then replace y by x.

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