document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=998742>Question 998742</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For each pair of lines, determine if they are parallel, perpendicular or neither. \r<BR>\n" );
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document.write( "A.      <BR>\n" );
document.write( "l1 : x-2y=6       \r<BR>\n" );
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document.write( " l2 : 2x+y=3    \r<BR>\n" );
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document.write( "AND <BR>\n" );
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document.write( "B. <BR>\n" );
document.write( "l1 : 3x-y=1       \r<BR>\n" );
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document.write( " l2 : -x+3y=3  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #616498 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=616498\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Put these in slope intercept form and if the slopes are equal, they are parallel, and if they are negative reciprocals, they are perpendicular.<BR>\n" );
document.write( "-2y=-x+6<BR>\n" );
document.write( "y=(1/2)x-6<BR>\n" );
document.write( "y=-2x-3.  These are perpendicular.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C200%2C-10%2C10%2C-7%2C7%2C%28x%2F2%29-6%2C-2x-3%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C200%2C-10%2C10%2C-7%2C7%2C%28x%2F2%29-6%2C-2x-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-y=-3x+1<BR>\n" );
document.write( "y=3x-1<BR>\n" );
document.write( "3y-x=3<BR>\n" );
document.write( "y=(x/3)+3<BR>\n" );
document.write( "Neither.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C200%2C-10%2C10%2C-7%2C7%2C3x-1%2C%28x%2F3%29%2B3%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C200%2C-10%2C10%2C-7%2C7%2C3x-1%2C%28x%2F3%29%2B3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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