document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=109409>Question 109409</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the slope of the line passing through the points (1, 3) and (1, –1).<BR>\n" );
document.write( "–4<BR>\n" );
document.write( "0<BR>\n" );
document.write( "Undefined<BR>\n" );
document.write( "1<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #79766 by </B><A HREF=/tutors/aboutme.mpl?userid=parth603><B>parth603(1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=parth603><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=79766\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> see  we have to find the slope of (1,3) and (1,-1)\r<BR>\n" );
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document.write( "formula: m(slope) = (y2-y1)/(x2-x1)<BR>\n" );
document.write( "                  = (-1-3)/(1-1)<BR>\n" );
document.write( "                  = -4/0\r<BR>\n" );
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document.write( "so -4/0 is the slope </SPAN>\n" );
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