Posted by KR on Monday, February 1, 2010 at 12:22am.
-2x^2-8x = y -3 (suspect you meant
x^2 + 4x = -(1/2)y +3/2
x^2 + 4x + 4 = -(1/2)y +11/2
(x+2)^2 = -(1/2) (y-11)
vertex at (-2,11) axis is x = -2
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