document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=410111>Question 410111</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the maximum or minimum value of the function defined by f(x)= -x squared -6x-8. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #288487 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=288487\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the maximum or minimum value of the function <BR>\n" );
document.write( "defined by f(x)= -x^2-6x-8.<BR>\n" );
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document.write( "Since x^2 has a negative coefficient,<BR>\n" );
document.write( "the parabola opens down.<BR>\n" );
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document.write( "Max occurs when x = -b/2a = 6/(-2) = -3<BR>\n" );
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document.write( "Max value is f(-3) = -(-3)^2-6(-3)-8 = -9+18-8 = 1<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C300%2C-10%2C10%2C-15%2C5%2C-x%5E2-6x-8%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C300%2C-10%2C10%2C-15%2C5%2C-x%5E2-6x-8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============ </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );