document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=446858>Question 446858</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the slope of AC and BD. Decide whether AC is perpendicular to BD.<BR>\n" );
document.write( "A(-1,-2) B(-3,2) C(0,1) D(3,0) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #307727 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=307727\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Slope of Line Ac\r<BR>\n" );
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document.write( "x1		y1	x2	y2				<BR>\n" );
document.write( "-1		-2	0	1				<BR>\n" );
document.write( "								<BR>\n" );
document.write( "slope m =(y2-y1)/(x2-x1)						<BR>\n" );
document.write( "(1-(-2)/(0-1)<BR>\n" );
document.write( "(3/1)  				<BR>\n" );
document.write( "m=3		<BR>\n" );
document.write( "Slope of line BD	\r<BR>\n" );
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document.write( "x1		y1	x2	y2				<BR>\n" );
document.write( "-3		2	3	0				<BR>\n" );
document.write( "								<BR>\n" );
document.write( "slope m =(y2-y1)/(x2-x1)						<BR>\n" );
document.write( "(0-2)/(	3-(-3)	) <BR>\n" );
document.write( "(-2/6)  				<BR>\n" );
document.write( "m=-0.33		\r<BR>\n" );
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document.write( "m1*m2=-1<BR>\n" );
document.write( "so the lines are perpendicular				 <BR>\n" );
document.write( "			 <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );