document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=30191>Question 30191</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the slope of any perpendicular to the line through points (0,5) and (-3,-4) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #16873 by </B><A HREF=/tutors/aboutme.mpl?userid=Fermat><B>Fermat(136)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fermat><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=Fermat><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=16873\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If you have two points (x1,y1) and (x2,y2), then the slope of the line between these two points is given by <BR>\n" );
document.write( "m = (y1-y2)/(x1-x2)<BR>\n" );
document.write( "Using the points given,(0,5) and (-3,-4)<BR>\n" );
document.write( "m = (5 + 4)/(0 + 3)<BR>\n" );
document.write( "m = 9/3<BR>\n" );
document.write( "m = 3<BR>\n" );
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document.write( "If two lines, with slopes m1 and m2, are perpindicular to each other, then the product of their slope is equal to minus 1,<BR>\n" );
document.write( "m1*m2 = -1<BR>\n" );
document.write( "So, if m1 = 3<BR>\n" );
document.write( "then<BR>\n" );
document.write( "m2 = -1/m1 = -1/3<BR>\n" );
document.write( "m2 = -1/3<BR>\n" );
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