SOLUTION: find the focus of the parabola y^2 + 4y - 4x -8 = 0

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Question 1086309: find the focus of the parabola y^2 + 4y - 4x -8 = 0
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
-4x=-y%5E2-4y-8
4x=y%5E2%2B4y%2B8
4x=y%5E2%2B4y%2B4%2B4
4x=%28y%2B2%29%5E2%2B4
4x-4=%28y%2B2%29%5E2
4%28x-1%29=%28y%2B2%29%5E2

Vertex, (1,-2)

4p=4
p=1-------Focus is 1 unit to the right of vertex.

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FOCUS, (2,-2)
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