document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1038476>Question 1038476</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If A(-1,-7) B(2,2) C(4,8), show that C lies on AB.\r<BR>\n" );
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document.write( "So I found that the general equation of AB is 3x-y-4=0, then how do you prove that C lies on AB from that? Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #653184 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=653184\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Slopes!  All three slopes should be equal.<BR>\n" );
document.write( "AB, BC, CA, slopes of each, congruent. </SPAN>\n" );
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