document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=142111>Question 142111</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me graph x^2+3x=18 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #103470 by </B><A HREF=/tutors/aboutme.mpl?userid=nabla><B>nabla(475)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nabla><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=103470\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> To graph a quadratic equation, it is first instructive to solve it; find its zeros:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B3x=18 ALIGN=MIDDLE  ALT=\"x%5E2%2B3x=18\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B3x-18=0 ALIGN=MIDDLE  ALT=\"x%5E2%2B3x-18=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B6%29%28x-3%29=0 ALIGN=MIDDLE  ALT=\"%28x%2B6%29%28x-3%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Gives x=-6 or x=3.\r<BR>\n" );
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document.write( "(Check: 36-18=18; 18=18 correct; 9+9=18; 18=18 correct)\r<BR>\n" );
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document.write( "Now, those two values give you x-intercepts to a function f(x)=x^2+3x-18.\r<BR>\n" );
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document.write( "The function's graph is as follows:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28+300%2C+200%2C+-10%2C+10%2C+-20%2C+20%2C+x%5E2%2B3x-18+%29 ALIGN=MIDDLE  ALT=\"graph%28+300%2C+200%2C+-10%2C+10%2C+-20%2C+20%2C+x%5E2%2B3x-18+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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