document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=311866>Question 311866</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine if the equations are intersecting, parallel, or coincident.\r<BR>\n" );
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document.write( "2x-y=c<BR>\n" );
document.write( "x+2y=d\r<BR>\n" );
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document.write( "The variables c and d are throwing me off.  Before I substituted coordinates to find an answer but what do I do with c & d. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #222999 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=222999\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Determine if the equations are intersecting, parallel, or coincident.<BR>\n" );
document.write( "2x-y=c<BR>\n" );
document.write( "x+2y=d <BR>\n" );
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document.write( "put both equations in the slope/intercept form y = mx + b<BR>\n" );
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document.write( "2x - y = c<BR>\n" );
document.write( "-y = -2x + c<BR>\n" );
document.write( "Multiply by -1<BR>\n" );
document.write( "y = 2x - c<BR>\n" );
document.write( "slope = 2<BR>\n" );
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document.write( "x + 2y = d<BR>\n" );
document.write( "2y = -x + d<BR>\n" );
document.write( "y = -<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2 ALIGN=MIDDLE  ALT=\"1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >x + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F2 ALIGN=MIDDLE  ALT=\"d%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "slope = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1%2F2 ALIGN=MIDDLE  ALT=\"-1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "These slopes indicate the lines intersect and are perpendicular<BR>\n" );
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