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13 July, 05:52

Given f (x) = the quantity of x minus 1, divided by 2, solve for f-1 (5). 2 9 11 15

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  1. 13 July, 05:53
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    F (x) = (x - 1) / 2

    y = (x - 1) / 2

    x - 1 = 2 y

    x = 2 y + 1

    f ^ (-1) (x) = 2 x + 1 (this is inverse function)

    f ^ (-1) (5) = 2 * 5 + 1 = 10 + 1 = 11

    Answer: C) 11
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