document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=891069>Question 891069</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine whether the pair of lines is parallel, perpendicular, or neither.\r<BR>\n" );
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document.write( "Y = 2x + 4<BR>\n" );
document.write( "3y = 6x + 6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #539469 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=539469\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Compare their slopes; or, compare their ratios of coefficients on x to coefficients on y.  If in proportion with same sign, then the lines are parallel.  If you find the slopes are negative reciprocals, then the lines are perpendicular.   </SPAN>\n" );
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