document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=772352>Question 772352</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the slope of a line perpendicular to the line that passes through the following points. <BR>\n" );
document.write( "( 4, 11) and ( -2, 1) <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #470906 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=470906\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Using gradient formula:<BR>\n" );
document.write( "y2 - y1/ x2 - x1<BR>\n" );
document.write( "1 - 11/-2 - 4<BR>\n" );
document.write( "-10/-6<BR>\n" );
document.write( "= 5/3<BR>\n" );
document.write( "Lines that are perpendicular to<BR>\n" );
document.write( "each other have slopes that multiply<BR>\n" );
document.write( "together to give -1<BR>\n" );
document.write( "m1 * m2 = -1<BR>\n" );
document.write( "m1 = 5/3<BR>\n" );
document.write( "m2 must equal -3/5<BR>\n" );
document.write( "5/3 * -3/5 = -1<BR>\n" );
document.write( "Slope = -3/5<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-)<BR>\n" );
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