document.write( "Question 290627: Find the vertex of the parabola:
\n" ); document.write( "y=-x²+8x+16
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Algebra.Com's Answer #210295 by user_dude2008(1862)\"\" \"About 
You can put this solution on YOUR website!
y=-x^2+8x+16\r
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\n" ); document.write( "\n" ); document.write( "y=-(x^2-8x-16)\r
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\n" ); document.write( "\n" ); document.write( "y=-(x^2-8x-16+16-16)\r
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\n" ); document.write( "\n" ); document.write( "y=-(x^2-8x+16-16-16)\r
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\n" ); document.write( "\n" ); document.write( "y=-((x-4)^2-16-16)\r
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\n" ); document.write( "\n" ); document.write( "y=-((x-4)^2-32)\r
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\n" ); document.write( "\n" ); document.write( "y=-(x-4)^2+32\r
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\n" ); document.write( "\n" ); document.write( "vertex is (4,32)
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