document.write( "Question 249751: the vertex of
\n" ); document.write( "2x^2 + 8x + 1 is at what point
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Algebra.Com's Answer #181883 by tutorcecilia(2152)\"\" \"About 
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2x^2 + 8x + 1 is at what point
\n" ); document.write( "\"%28-b%2F2a%29\" [use the formula for finding the x-value of the vertex]
\n" ); document.write( "\"%28-%288%29%2F2%282%29%29\" [plug-in the appropriate values from the equation]
\n" ); document.write( "x=-2
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\n" ); document.write( "y=2x^2 + 8x + 1
\n" ); document.write( "y=2(-2)^2 + 8(-2) + 1 [plug-in the x-value (-2) and solve for the y-value]
\n" ); document.write( "y=8-16+1
\n" ); document.write( "y=-7
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\n" ); document.write( "So, the vertex point is (-2, -7)
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