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13 March, 00:06

Find the inverse of y=9x^2-4

+2
Answers (1)
  1. 13 March, 03:35
    0
    y

    =

    9

    x

    2

    -

    4

    y

    =

    9

    x

    2

    -

    4

    Interchange the variables.

    x

    =

    9

    y

    2

    -

    4

    x

    =

    9

    y

    2

    -

    4

    Solve for

    y

    y

    .

    Tap for more steps ...

    y

    =



    x

    +

    4

    3

    y

    =

    x

    +

    4

    3

    y

    =

    -



    x

    +

    4

    3

    y

    =

    -

    x

    +

    4

    3

    Solve for

    y

    y

    and replace with

    f

    -

    1

    (

    x

    )

    f

    -

    1

    (

    x

    )

    .

    Tap for more steps ...

    f

    -

    1

    (

    x

    )

    =



    x

    +

    4

    3

    ,

    -



    x

    +

    4

    3

    f

    -

    1

    (

    x

    )

    =

    x

    +

    4

    3

    ,

    -

    x

    +

    4

    3
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