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26 August, 18:09

Want is the inverse of the function f (x) = 2x-10

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Answers (2)
  1. 26 August, 21:52
    0
    The inverse is

    f^-1 (x) = 1/2x+5
  2. 26 August, 22:03
    0
    f

    -

    1

    (

    x

    )

    =

    1

    2

    x

    +

    5

    Explanation:

    f

    (

    x

    )

    =

    2

    x

    -

    10



    Replace the

    f

    (

    x

    )

    with

    y

    y

    =

    2

    x

    -

    10



    Switch the places of the x and the y

    x

    =

    2

    y

    -

    10



    Solve for y

    x

    +

    10

    =

    2

    y

    y

    =

    1

    2

    x

    +

    5

    The inverse is

    f

    -

    1

    (

    x

    )

    =

    1

    2

    x

    +

    5
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