document.write( "Question 776015: without putting the parabola in vertex form, identify the vertex. is the vertex a maximum or minimum? A) f(x)=2x^2=8x=7 B) y=-x^2=6x-8 \n" ); document.write( "
Algebra.Com's Answer #473331 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! without putting the parabola in vertex form, identify the vertex. is the vertex a maximum or minimum? \n" ); document.write( "The vertex occurs where x = -b/(2a) \n" ); document.write( "------------------------------------------------ \n" ); document.write( "A) f(x)=2x^2+8x+7 \n" ); document.write( "x = -8/(-4) = 2 \n" ); document.write( "f(2) = 4+16+7 = 27 \n" ); document.write( "----------------------- \r \n" ); document.write( "\n" ); document.write( "B) y=-x^2+6x-8 \n" ); document.write( "x = -b/(2a)=-6/(-2) = 3 \n" ); document.write( "f(3) = -9+12-8 = -5 \n" ); document.write( "============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "--------------------------------- \n" ); document.write( " \n" ); document.write( " |