document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1125265>Question 1125265</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The problem requires the following:\r<BR>\n" );
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document.write( "Find the slope of the vertical line through the point (9,15).<BR>\n" );
document.write( "Since the slope formula requires a second ordered pair, I believe that it would be zero, Since the x2 and y2 coordinates are not given. However, I'm not sure if this is right. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #741559 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=741559\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Slope is  not defined for a vertical line (slope = rise/run = (y2-y1)/(x2-x1) and run=0 for a vertical line).   In some contexts,  slope might be called infinite for a vertical line.   <br>\r<BR>\n" );
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document.write( "A horizontal line has zero slope.  \r<BR>\n" );
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