document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1178094>Question 1178094</A>: <I><SPAN STYLE=\"word-break: break-all;\"> P(6,3) Q(4,7) and R(3,1) are the midpoints of the sides of the triangle ABC. Find the equation of the line AB.Find the equation of the perpendicular bisector of the line AC. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #807252 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=807252\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "The slope of a line passing through the two points P=(x1,y1) and Q=(x2,y2) is given by m=(y2−y1)/(x2−x1.)<BR>\n" );
document.write( "We have that x1=6, y1=3, x2=4, y2=7.<BR>\n" );
document.write( "Plug the given values into the formula for slope: m=((7)−(3))/((4)−(6))=4/−2<BR>\n" );
document.write( "=−2.<BR>\n" );
document.write( "PQ || AB<BR>\n" );
document.write( "slope of AB = -2<BR>\n" );
document.write( "Find equation knowing slope and point<BR>\n" );
document.write( "m= -2\r<BR>\n" );
document.write( "\n" );
document.write( "Plug value of the slope and point ( 3 , 1 ) in<BR>\n" );
document.write( "Y = m x + b<BR>\n" );
document.write( "1.00 = -6 + b<BR>\n" );
document.write( "b= 1.00 - -6<BR>\n" );
document.write( "b= 7<BR>\n" );
document.write( "So the equation will be<BR>\n" );
document.write( "Y = -2 x + 7\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );