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27 October, 17:37

F (x) = =x² + 10x-a

What is the vertex?

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Answers (1)
  1. 27 October, 17:59
    0
    of

    x

    x

    and

    y

    y

    .

    f

    (

    x

    )

    =

    x

    2

    -

    10

    x

    f (x) = x2-10x

    Rewrite the equation in vertex form.

    Tap for more steps ...

    y

    =

    (

    x

    -

    5

    )

    2

    -

    25

    y = (x-5) 2-25

    Use the vertex form,

    y

    =

    a

    (

    x

    -

    h

    )

    2

    +

    k

    y=a (x-h) 2+k

    , to determine the values of

    a

    a

    ,

    h

    h

    , and

    k

    k

    .

    a

    =

    1

    a=1

    h

    =

    5

    h=5

    k

    =

    -

    25

    k=-25

    Find the vertex

    (

    h

    ,

    k

    )

    (h, k)

    .

    (

    5

    ,

    -

    25

    )

    (5,-25)
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