document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=146818>Question 146818</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given A(1,-1), B(3,3), C(4,5). Prove that A,B,C are collinear.<BR>\n" );
document.write( "How do I prove this? I can't find any formula for this and the only thing I did was graphing the points. Can the graph prove this alone? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #107212 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=107212\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the equation of the line that goes through A and B. Now plug in the coordinates of point C to see if C falls on the line.  </SPAN>\n" );
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