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)\"\" \"About 
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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)
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\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
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\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
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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