document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=984646>Question 984646</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the two lines a1x+b1y+c1=0 and a2x+b2y+c2=0 are identical if </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #605424 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52786)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=605424\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "The two lines &nbsp;<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a1%2Ax+%2B+b1%2Ay+%2B+c1+=+0 ALIGN=MIDDLE  ALT=\"a1%2Ax+%2B+b1%2Ay+%2B+c1+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >&nbsp; and &nbsp;<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a2%2Ax+%2B+b2%2Ay+%2B+c2+=+0 ALIGN=MIDDLE  ALT=\"a2%2Ax+%2B+b2%2Ay+%2B+c2+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >&nbsp; are identical if\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B1%5D%2Fa%5B2%5D ALIGN=MIDDLE  ALT=\"a%5B1%5D%2Fa%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5B1%5D%2Fb%5B2%5D ALIGN=MIDDLE  ALT=\"b%5B1%5D%2Fb%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c%5B1%5D%2Fc%5B2%5D ALIGN=MIDDLE  ALT=\"c%5B1%5D%2Fc%5B2%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > &nbsp;&nbsp;&nbsp;&nbsp;or \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5B2%5D%2Fa%5B1%5D ALIGN=MIDDLE  ALT=\"a%5B2%5D%2Fa%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5B2%5D%2Fb%5B1%5D ALIGN=MIDDLE  ALT=\"b%5B2%5D%2Fb%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c%5B2%5D%2Fc%5B1%5D ALIGN=MIDDLE  ALT=\"c%5B2%5D%2Fc%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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