document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1089828>Question 1089828</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Without graphing a problem, how can you tell if two equations are parallel, perpendicular, or neither?  The specific equations I am trying to figure out are 3x-5y=12 and 5x+3y=24<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #704209 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=704209\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two <em>lines</em>  are parallel if they have the same slope.<BR>\n" );
document.write( "Two lines are perpendicular if their slopes are negative inverses:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+m%5B2%5D+=+%28-1%29%2Fm%5B1%5D+ ALIGN=MIDDLE  ALT=\"+m%5B2%5D+=+%28-1%29%2Fm%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Put the lines in the form y = mx + b  by rearranging the equations, and compare 'm' values.\r<BR>\n" );
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