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18 October, 03:48

Given that f (x) = 4x+1/3, solve for f^-1 (3)

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  1. 18 October, 04:10
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    The value is 2/3

    Step-by-step explanation:

    In order to find this, we first need to find the inverse of the equation (f^-1). To do this, switch f (x) and x and then solve for the new f (x).

    f (x) = 4x + 1/3

    x = 4f (x) + 1/3

    x - 1/3 = 4f (x)

    1/4x - 1/12 = f (x)

    f^-1 (x) = 1/4x - 1/12

    Now that we have the inverse function, we simply need to plug in 3 for x and we get the value we are searching for.

    f^-1 (x) = 1/4 (3) - 1/12

    f^-1 (x) = 3/4 - 1/12

    f^-1 (x) = 9/12 - 1/12

    f^-1 (x) = 8/12

    f^-1 (x) = 2/3
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