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November 24, 2014

Homework Help: math-algebra

Posted by Anonymous on Wednesday, September 26, 2007 at 1:01am.

9. What is the vertex of the parabola y = x^2 + 4x + 1?:

A. (2, -3)

B. (-2, 3)

C. (2, 3)

D. (-2, -3)

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