document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=640214>Question 640214</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the slope if it exists of the line containing the pair of points. (1,-2) and (1,-9)<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 #403059 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=403059\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The line joining the points (1,-2) and (1,-9) is a vertical line.<BR>\n" );
document.write( "The slope of a vertical line is UNDEFINED. </SPAN>\n" );
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