document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=535971>Question 535971</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have the equation y=-x^2-8x-15 and i am trying to graph it. How do I find the vertex? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #352043 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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/cgi-bin/show-face.mpl?user=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=352043\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=-x^2-8x-15<BR>\n" );
document.write( "The vertex for x=-b/2a=8/-2=-4<BR>\n" );
document.write( "y(-4)=-16+32-15=1 vertex for y<BR>\n" );
document.write( "(-4, 1) Vertex<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28500%2C500%2C-10%2C10%2C-10%2C10%2C-x%5E2-8x-15%29 ALIGN=MIDDLE  ALT=\"graph%28500%2C500%2C-10%2C10%2C-10%2C10%2C-x%5E2-8x-15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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