document.write( "Question 690020: What is the vertex in the quadratic equation x2 + 8x + 7 = y?\r
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Algebra.Com's Answer #426137 by stanbon(75887)\"\" \"About 
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What is the vertex in the quadratic equation x2 + 8x + 7 = y?
\n" ); document.write( "Input your answer in the form: (x, y)
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\n" ); document.write( "Conplete the square:
\n" ); document.write( "y = x^2 + 8x + 16 + 7 - 16
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\n" ); document.write( "y = (x+4)^2 - 9
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\n" ); document.write( "Vertex: (-4,-9)
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\n" ); document.write( "\"graph%28400%2C400%2C-10%2C10%2C-15%2C15%2Cx%5E2%2B8x%2B7%29\"
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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