document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=76693>Question 76693</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the slope of any line perpendicular to the line through points (9, 12) and (10, 4).<BR>\n" );
document.write( "I got -8 but I am not sure if it is right. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #55002 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=55002\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the slope of any line perpendicular to the line through points (9, 12) and (10, 4).<BR>\n" );
document.write( "The slope between these two points is -8, however, they are asking for the slope of any line perpendicular to the lines containing those two points.<BR>\n" );
document.write( "The slope formula is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29 ALIGN=MIDDLE  ALT=\"m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, m=slope, (x1,y1) and (x2,y2) are given points.<BR>\n" );
document.write( "(x1,y1)=(9,12) and (x2,y2)=(10,4)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%284-12%29%2F%2810-9%29 ALIGN=MIDDLE  ALT=\"m=%284-12%29%2F%2810-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=-8%2F1 ALIGN=MIDDLE  ALT=\"m=-8%2F1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The slope of any line perpendicular to this line would be it's negative reciprocal.  That means you have to change the sign and flip it over.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28m=1%2F8%29 ALIGN=MIDDLE  ALT=\"highlight%28m=1%2F8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Happy Calculating!!!! </SPAN>\n" );
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