SOLUTION: F(x)=4x^2-4x-15 find the axis of symmetry and the vertex

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Question 940330: F(x)=4x^2-4x-15 find the axis of symmetry and the vertex
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Convert to vertex form by completing the square.
F%28x%29=4x%5E2-4x-15
F%28x%29=4%28x%5E2-x%29-15
F%28x%29=4%28x%5E2-x%2B1%2F4-1%2F4%29-15
F%28x%29=4%28x%5E2-x%2B1%2F4%29-4%281%2F4%29-15
F%28x%29=4%28x-1%2F2%29%5E2-16
The vertex is (1%2F2,-16).
The axis of symmetry is x=1%2F2