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Write the quadratic equation function in the form :  a(x-h)^2+k f(x)=x^2-4x+9

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roshan-rox | Valedictorian

Posted June 10, 2013 at 7:59 AM via web

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Write the quadratic equation function in the form :  a(x-h)^2+k

f(x)=x^2-4x+9

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jeew-m | College Teacher | (Level 1) Educator Emeritus

Posted June 10, 2013 at 8:04 AM (Answer #1)

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This is related to completing the square of quadratic equations.

`f(x)=x^2-4x+9`

`f(x) = x^2-4x+4+5`

`f(x) = (x^2-4x+4)+5`

`f(x) = (x-2)^2+5`

This will look in the form of a(x-h)^2+k.

a = 1

h = 2

k = 5

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