document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=320304>Question 320304</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determiune whether the graphs of the two equations are perpendicular?<BR>\n" );
document.write( "x+2y=7<BR>\n" );
document.write( "2x+4y=9 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #229478 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=229478\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If I multiply the first equation by 2, I would get,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%2B4y=14 ALIGN=MIDDLE  ALT=\"2x%2B4y=14\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The second equation is <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%2B4y=9 ALIGN=MIDDLE  ALT=\"2x%2B4y=9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "These lines have the same x-y relationship (left hand side, slopes) and different right hand sides.<BR>\n" );
document.write( "They are parallel since they have equal slopes.  </SPAN>\n" );
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