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12 August, 06:04

If f (x) = - 3x+3, then f^-1 (x) =

That's all the question asks about

It's under Inverse of a function

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Answers (2)
  1. 12 August, 06:12
    0
    To solve for inverse

    replce f (x) with y

    switch x and y

    solve for y

    replace y with f⁻¹ (x)

    f (x) = - 3x+3

    replace with y

    y=-3x+3

    switch x and y

    x=-3y+3

    solve for y

    x-3=-3y

    1 - (x/3) = y

    f⁻¹ (x) = 1 - (x/3)
  2. 12 August, 06:17
    0
    To obtain the inverse of the function, simply switch the X and y variables for each other, and solve for the new y variable, to find the new function.

    F (X) = - 3x + 3

    Y = - 3X + 3

    X = - 3y + 3

    -3y = X - 3

    Y = - 1/3X + 1.

    F^-1 (X) = - 1/3 (-1) + 1

    F^-1 (X) = 1/3 + 3/3

    F^-1 (X) = 4/3.

    I believe this would be the correct solution.
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