document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1102049>Question 1102049</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have to determine whether the pair of lines are parallel, perpendicular, or neither.\r<BR>\n" );
document.write( "\n" );
document.write( "2x-3y=-18<BR>\n" );
document.write( "2x+3y=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #716678 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</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=716678\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x-3y=-18------------ slope, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F3 ALIGN=MIDDLE  ALT=\"2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2x+3y=0---------------slope, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2%2F3 ALIGN=MIDDLE  ALT=\"-2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "What does that tell you?<BR>\n" );
document.write( "Same slope, parallel<BR>\n" );
document.write( "Product of slopes negative 1, perpendicular<BR>\n" );
document.write( "Neither of these, intersect, and neither parallel nor perpendicular </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );