document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=975416>Question 975416</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do you find the vertex for y=-xsquared+8x-3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #597205 by </B><A HREF=/tutors/aboutme.mpl?userid=Shana-D><B>Shana-D(6)</B></A><img src=\"/images/stars/stars-05.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Shana-D><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=597205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y = -x^2 + 8x - 3 \r<BR>\n" );
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document.write( "use x = -b/(2a) to find x at the vertex.<BR>\n" );
document.write( "plug this value back into the equation to find y at the vertex.\r<BR>\n" );
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document.write( "x = -b/(2a)<BR>\n" );
document.write( "x = -8/(2*-1)<BR>\n" );
document.write( "x = 4\r<BR>\n" );
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document.write( "now plug 4 back in: y = -(4)^2 + 8(4) - 3\r<BR>\n" );
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document.write( "Vertex is at (4, 13) </SPAN>\n" );
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