document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=810518>Question 810518</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this question:\r<BR>\n" );
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document.write( "Find the vertex and graph the parabola.<BR>\n" );
document.write( "y=x^2+4x+3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #488213 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=488213\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=x^2+4x+3<BR>\n" );
document.write( "x coordinate of the vertex is given by -b/2a = -4/2*1 = -2<BR>\n" );
document.write( "now substitute for x in the equation<BR>\n" );
document.write( "y = (-2)^2 +4*(-2) + 3<BR>\n" );
document.write( "y = -1<BR>\n" );
document.write( "vertex is (-2, -1)<BR>\n" );
document.write( "here is the graph<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-5%2C+5%2C+-10%2C+10%2C+x%5E2+%2B4x+%2B3%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-5%2C+5%2C+-10%2C+10%2C+x%5E2+%2B4x+%2B3%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
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