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OpenStudy (anonymous):
Find the vertex of the parabola whose equation is y = x^2 + 8x + 12. (-4, 12) (-4, -4) (0, -6)
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sam (.sam.):
Vertex of x, \[x=-\frac{b}{2a}\]
sam (.sam.):
You get x=-4 Now substitute this into y = x^2 + 8x + 12 to find y
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