document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=117885>Question 117885</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Are the following lines parallel, perpendicular, or neither?\r<BR>\n" );
document.write( "\n" );
document.write( "L1 with equation x-4y=12<BR>\n" );
document.write( "L2with equation 4x+y=4\r<BR>\n" );
document.write( "\n" );
document.write( "Check their slopes,m:<BR>\n" );
document.write( "y=mx+b\r<BR>\n" );
document.write( "\n" );
document.write( "If m1 and m2 are equal, then the lines are parallel.<BR>\n" );
document.write( "If m1 and m2 are negative reciprocals, then the lines are perpendicular\r<BR>\n" );
document.write( "\n" );
document.write( "L1 = -4y=-x+12-->y=1/4x-3--->m1=(1/4)<BR>\n" );
document.write( "L2 =  y = -4x +4--->m2=(-4)\r<BR>\n" );
document.write( "\n" );
document.write( "Since m1 and m2 are negative, reciprocals the lines are perpendicular.\r<BR>\n" );
document.write( "\n" );
document.write( "Hope that helps.<BR>\n" );
document.write( "misscrt<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #85864 by </B><A HREF=/tutors/aboutme.mpl?userid=misscrt><B>misscrt(37)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=misscrt><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=85864\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );