document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=44201>Question 44201</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the slope of the line through the pair of points.\r<BR>\n" );
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document.write( "(-9, -6) and (-9, -8)\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #29154 by </B><A HREF=/tutors/aboutme.mpl?userid=adamchapman><B>adamchapman(301)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=adamchapman><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=29154\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The gradient is equal to the change in y divided by the change in x.<BR>\n" );
document.write( "There is no change in x between the two ponts, so the gradient is equal to the change in y divided by zero.<BR>\n" );
document.write( "Anything divided by zero is equal to infinity.<BR>\n" );
document.write( "Therefore the slope of the line is equal to plus or minus infinity (it is impossible to tell if the line goes straight \"up\" or \"down\")!\r<BR>\n" );
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document.write( "I hope this helps.<BR>\n" );
document.write( "P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk\r<BR>\n" );
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