document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=96941>Question 96941</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the slope of any line perpendicular to the line through points (6, 3) and (7, 7).\r<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 #70567 by </B><A HREF=/tutors/aboutme.mpl?userid=mathslover><B>mathslover(157)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mathslover><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=mathslover><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=70567\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> for 2 points with co-ordinates as (x1,y1) and (x2,y2)<BR>\n" );
document.write( "the slope is given by y2 - y1 / x2 -x1<BR>\n" );
document.write( "Hence the slope of the line with the given points (6,3) and (7,7) is <BR>\n" );
document.write( "7-3 / 7-6  = 4\r<BR>\n" );
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document.write( "Let the slope of the line perpendicular to it be m\r<BR>\n" );
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document.write( "Now since the product of the slope of a line and the slope of its perpendicular is -1 <BR>\n" );
document.write( "=> m* 4 =-1<BR>\n" );
document.write( "Hence, m = -1/4<BR>\n" );
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