document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=993860>Question 993860</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find c such that (-8,-6),(-1,-1) and (c,-5) lie on a line </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #613085 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=613085\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find c such that (-8,-6),(-1,-1) and (c,-5) lie on a line<BR>\n" );
document.write( "Label the points A(-8,-6), B(-1,-1) and C(c,-5)<BR>\n" );
document.write( "Find the slope of AB<BR>\n" );
document.write( "m = diffy/diffx = 5/7<BR>\n" );
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document.write( "The slope of BC has to be 5/7<BR>\n" );
document.write( "----<BR>\n" );
document.write( "(-5+1)/(c+1) = 5/7<BR>\n" );
document.write( "-4/(c+1) = 5/7<BR>\n" );
document.write( "5(c+1) = -28<BR>\n" );
document.write( "c+1 = -28/5<BR>\n" );
document.write( "c = -33/5<BR>\n" );
document.write( " </SPAN>\n" );
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