document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=177328>Question 177328</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The vertices of a triangle are P(-3,2), Q(-1,6) and R(4,1). Write an equation for the line containing each side. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #132388 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=132388\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The vertices of a triangle are P(-3,2), Q(-1,6) and R(4,1). Write an equation for the line containing each side.<BR>\n" );
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document.write( "Line PQ:<BR>\n" );
document.write( "slope = (6-2)/(-1--3) = 4/2 = 2<BR>\n" );
document.write( "intercept: 2 = 2*-3 + b<BR>\n" );
document.write( "b = 8<BR>\n" );
document.write( "Equation: y = 2x + 8<BR>\n" );
document.write( "==============================<BR>\n" );
document.write( "Line QR:<BR>\n" );
document.write( "slope = (1-6)/(4--1) = -5/5 = -1<BR>\n" );
document.write( "intercept: 1 = -1*4 + b<BR>\n" );
document.write( "b = 5<BR>\n" );
document.write( "Equation: y = -x+5<BR>\n" );
document.write( "=======================<BR>\n" );
document.write( "I'll leave equation of PR to you.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );