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25 October, 01:33

If f (x) = 2x/7+4 which of the following is the inverse of f (x)

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Answers (2)
  1. 25 October, 05:15
    0
    F-7 (x) = 11x/2

    That's the answer
  2. 25 October, 05:15
    0
    f (x) = 2x / (7 + 4)

    We can simplify 7 + 4 to 11.

    f (x) = 2x/11

    Replace f (x) with y.

    y = 2x/11

    Swap x and y.

    x = 2y/11

    Solve for y.

    Multiply both sides by 11.

    11x = 2y

    Divide both sides by 2.

    y = 11x/2

    Replace y with f^-1 (x)

    f^-1 (x) = 11x/2
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