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26 January, 11:10

If f (x) = 5x, what is f^-1 (x) ?

F (x) = - 5x

of (x) -

F (x) = 5*

O F (x) = 5x

+5
Answers (1)
  1. 26 January, 11:21
    0
    f^-1 (x) = x/5

    Step-by-step explanation:

    f (x) = 5x

    Replace f (x) with y

    y = 5x

    Exchange x and y

    x = 5y

    Solve for y

    Divide each side by 5

    x/5 = 5y/5

    x/5 = y

    The inverse is x/5
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