document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1180165>Question 1180165</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In ABC, where A(1, 18), B(  -  7, 4), and C(5, 0), determine whether the line segment joining the <BR>\n" );
document.write( "midpoints of AB and AC are parallel to side BC. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #809762 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=809762\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/display-illustration.mpl?tutor=mananth&illustration_name=mid.png\">.\r<BR>\n" );
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document.write( "Calculate mid point of AB and AC\r<BR>\n" );
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document.write( "x=(-1+7)/2 =-3<BR>\n" );
document.write( "y= (18+4)/2 =11\r<BR>\n" );
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document.write( "slope of EF<BR>\n" );
document.write( "x1		y1	x2	y2				<BR>\n" );
document.write( "-3		11	3	9				<BR>\n" );
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document.write( "slope m =		(y2-y1)/(x2-x1)						<BR>\n" );
document.write( "(	9	-	11	)/(	3	-	-3	)<BR>\n" );
document.write( "(	-2	/	6	)  				<BR>\n" );
document.write( "m=		-0.33						 \r<BR>\n" );
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document.write( "slope of BC\r<BR>\n" );
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document.write( "x1		y1	x2	y2				<BR>\n" );
document.write( "-7		4	5	0				<BR>\n" );
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document.write( "slope m =		(y2-y1)/(x2-x1)						<BR>\n" );
document.write( "(	0	-	4	)/(	5	-	-7	)<BR>\n" );
document.write( "(	-4	/	12	)  				<BR>\n" );
document.write( "m=		-0.33						 \r<BR>\n" );
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document.write( "slope EF  equal to slope BC<BR>\n" );
document.write( "so EF parallel to BC </SPAN>\n" );
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