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23 March, 03:40

Which of the following is the inverse of f (x) = 4x-10?

A.) f (x) = x-10/4

B.) f (x) = x+10/4

C.) f (x) = 4/x-10

D.) f (x) = 4/x+10

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Answers (1)
  1. 23 March, 07:12
    0
    Injective - (one-to-One)

    so

    Replace the f (x) with y

    10-4x

    Interchange the variables

    x=10-4y

    Solv for y.

    y = 5/2 - x/4

    So solve for y and replace with f-1 (x).

    and it equals

    f-1 (x) = 5/2 - x/4
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