document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=370216>Question 370216</A>: <I><SPAN STYLE=\"word-break: break-all;\"> determine whether the pair of lines x-2y=7 and y=-2x+5 are parallel, perpendicular, or coincide </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #263858 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=263858\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The 2nd equation is the same as 2x+y = 5.  Any line perpendicular to this line must have the equation x -2y = c, where c is a constant.  Since the first equation has this form, the pair of lines are perpendicular. </SPAN>\n" );
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