document.write( "Question 172668: write the quadratic function in vertex form. Then, identify the vertex.\r
\n" ); document.write( "\n" ); document.write( "x²-16x+56=0
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Algebra.Com's Answer #127524 by stanbon(75887)\"\" \"About 
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write the quadratic function in vertex form. Then, identify the vertex.
\n" ); document.write( "x²-16x+56=y
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\n" ); document.write( "x^2 - 16x + ? = y-56 + ?\r
\n" ); document.write( "\n" ); document.write( "x^2 - 16x + 64 = y-56 + 64\r
\n" ); document.write( "\n" ); document.write( "(x-8)^2 = y+8
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\n" ); document.write( "Vertex: (8,-8)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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