SOLUTION: Write the function in vertex form. Y=-x^2+4x+4

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Question 804870: Write the function in vertex form. Y=-x^2+4x+4
Answer by erica65404(394) About Me  (Show Source):
You can put this solution on YOUR website!
vertex form is
y=a%28x-h%29%5E2%2Bk}
To get it into vertex form, complete the square.
y=-x%5E2%2B4x%2B4
y=-%28x%5E2-4x-4%29
y=-%28x%5E2-4x%2B4-4-4%29
y=-%28x-2%29%5E2%2B8