document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1004957>Question 1004957</A>: <I><SPAN STYLE=\"word-break: break-all;\"> g(x)=x2-6x-7 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 #621338 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39838)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=621338\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The vertex has a value for x which is exactly in the middle of the zeros of the function.\r<BR>\n" );
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document.write( "Let D be the discriminant.<BR>\n" );
document.write( "Zeros of x are  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286%2B-+sqrt%28D%29%29%2F2 ALIGN=MIDDLE  ALT=\"%286%2B-+sqrt%28D%29%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Find the value of x in the middle.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F2%29%28%286-sqrt%28D%29%29%2F2%2B%286%2Bsqrt%28D%29%29%2F2%29 ALIGN=MIDDLE  ALT=\"%281%2F2%29%28%286-sqrt%28D%29%29%2F2%2B%286%2Bsqrt%28D%29%29%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F4%2912 ALIGN=MIDDLE  ALT=\"%281%2F4%2912\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%283%29 ALIGN=MIDDLE  ALT=\"highlight%283%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >--------the x value for the vertex.\r<BR>\n" );
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document.write( "Now, knowing that, what is g(3)?<BR>\n" );
document.write( "Vertex point will be   (3,g(3)). </SPAN>\n" );
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