document.write( "Question 249751: the vertex of
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document.write( "2x^2 + 8x + 1 is at what point \n" );
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Algebra.Com's Answer #181883 by tutorcecilia(2152) You can put this solution on YOUR website! 2x^2 + 8x + 1 is at what point \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "x=-2 \n" ); document.write( ". \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 \n" ); document.write( ". \n" ); document.write( "So, the vertex point is (-2, -7) \n" ); document.write( " |