document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=53824>Question 53824</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For the floor plans given in exercise 27, determine whether the side through the points (2,3) and (11,6) is perpendicular to the side through the points (2,3) and (-3,18). The floor plans for the building (in exercise 27) have the four corners of a room located at the points (2,3), (11,6), (-3,18), and (8,21).<BR>\n" );
document.write( "McGraw Hill 6th edition, 7.2, Problem # 28. Thanks!!   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #36049 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=36049\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> determine whether the side through the points (2,3) and (11,6) is perpendicular to the side through the points (2,3) and (-3,18). <BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Slope #1 = [6-3]/[11-2]= 3/9=1/3<BR>\n" );
document.write( "Slope #2 = [18-3]/[-3-2]=15/-5 =-3<BR>\n" );
document.write( "Since each is the negative reciprocal of the other the lines are<BR>\n" );
document.write( "perpendicular.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );