document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1166853>Question 1166853</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Do the points (1, 2), (51, 27) and (91, 48) lie on a straight line? Give a reason for your answer.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #791408 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52879)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=791408\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "Check if the slope has identical value for two pairs of the points.\r<BR>\n" );
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document.write( "You may choose any two pair of the three possible pairs.\r<BR>\n" );
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document.write( "If the slope is the same, it is a necessary and sufficient condition for the three points to be in one line.\r<BR>\n" );
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