document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=54646>Question 54646</A>: <I><SPAN STYLE=\"word-break: break-all;\"> given line1 passing through the points (-4,-1) and (-1,0) and line2 passing through the points (5,8) and (0,4) are the lines parallel, perpendicular, or neigher? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #36887 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=36887\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Lines that are parallel have the same slope.<BR>\n" );
document.write( "Lines that are perpendicular have slopes that are negative reciprocals of each other.<BR>\n" );
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document.write( "Line #1 = m=(0-(-1))/-1-(-4) [plug the values into the formula for a slope]<BR>\n" );
document.write( "m=1/3<BR>\n" );
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document.write( "Line # 2 =m=(4-8)/0-5)=-4/-5=4/5<BR>\n" );
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document.write( "Looking at the slopes of both lines, the lines are neither parallel nor perpendicular.<BR>\n" );
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