document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=469056>Question 469056</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the slope of the line represented by the equation x = -9? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #321823 by </B><A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><B>algebrahouse.com(1659)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><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=algebrahouse.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=321823\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x = -9\r<BR>\n" );
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document.write( "slope is \"undefined\".....it is a vertical line\r<BR>\n" );
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document.write( "Whenever you have an equation that starts off \"x = \", and then<BR>\n" );
document.write( "just a number on the other side, that is a vertical line.<BR>\n" );
document.write( "All vertical lines have slopes which are undefined.<BR>\n" );
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