document.write( "Question 1003347: f(x) = −x^2 + 8x + 3\r
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Algebra.Com's Answer #620068 by stanbon(75887)\"\" \"About 
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f(x) = −x^2 + 8x + 3
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\n" ); document.write( "max occurs at x = -b/(2a) = -8/(-2) = 4
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\n" ); document.write( "max value y = f(4) = -16+32+3 = 16+3 = 19
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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