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OpenStudy (anonymous):
Find the vertex of the parabola by completing the square. x^2-6x+8=y A. (–3,– 6) B. (3,–1) C. (–3,1) D. (–1, 3)
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OpenStudy (anonymous):
vertex is at \(x=-\frac{b}{2a}=-\frac{-6}{2\times 1}=3\)
OpenStudy (anonymous):
leaves only one choice
OpenStudy (anonymous):
so the answer is D?
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