document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=69824>Question 69824</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Are the following lines parallel, perpendicular, or neither?<BR>\n" );
document.write( "   L1 with equation x – 4y = 12<BR>\n" );
document.write( "   L2 with equation 4x + y = 4\r<BR>\n" );
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document.write( "(A) Perpendicular<BR>\n" );
document.write( "(B) Neither<BR>\n" );
document.write( "(C) Parallel<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 #49782 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><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=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=49782\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. Solve for y in each equation.<BR>\n" );
document.write( "2. if the slopes are equal, the equations are parellel.<BR>\n" );
document.write( "3. if the slopes are negative reciprocals, the lines are perpendicular<BR>\n" );
document.write( "In this case the lines have slopes that are negative reciprocals and are therefore perpendicular:<BR>\n" );
document.write( "y=1/4x-3 (slope = 1/4)<BR>\n" );
document.write( "y=-4x+4 (slope = -4) </SPAN>\n" );
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