document.write( "Question 400040: Graph the Function.
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Algebra.Com's Answer #283257 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Using the vertex form of a parabola,  where(h,k) is the vertex
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document.write( " y = (x + 3)(x - 4)
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document.write( " y = x^2 -x - 12  |expanding
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document.write( " y = (x- 1/2)^2 - 1/4 - 12  |completing the square
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document.write( " y = (x- 1/2)^2 - 49/4   Vertex is Pt(1/2,-49/4), line of symmetry x = 1/2
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