document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=748164>Question 748164</A>: <I><SPAN STYLE=\"word-break: break-all;\"> is 9x+3y=12; 27x+9y=40 parallel, perpendicular, or neither? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #455360 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=455360\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 9x + 3y = 12<BR>\n" );
document.write( "     3y = - 9x + 12<BR>\n" );
document.write( "      y = - 3x + 4  Gradient= -3<BR>\n" );
document.write( "27x + 9y = 40<BR>\n" );
document.write( "      9y = - 27x + 40<BR>\n" );
document.write( "       y = - 3x  + 40/9  Gradient = -3<BR>\n" );
document.write( "Having the same gradients these lines are parallel </SPAN>\n" );
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