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

Expert Answers
jeew-m eNotes educator| Certified Educator

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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