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18 June, 18:12

If f (x) = - 15x-5, then f^-1 (x) =

+5
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  1. 18 June, 20:52
    0
    (x+5) / -15 = f^-1 (x)

    Step-by-step explanation:

    f (x) = - 15x-5

    y = - 15x-5

    Exchange x and y

    x = - 15y - 5

    Solve for y

    Add 5 to each side

    x+5 = - 15y - 5+5

    x+5 = - 15y

    Divide by - 15

    (x+5) / -15 = - 15y/-15

    (x+5) / -15 = y

    (x+5) / -15 = f^-1 (x)
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