document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=314286>Question 314286</A>: <I><SPAN STYLE=\"word-break: break-all;\"> why the line x=4 is a vertical line? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #224668 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=224668\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The line x = 4 is parallel with the y-axis.\r<BR>\n" );
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document.write( "This means that the value of the y-coordinate in the form (x,y) changes while the x-coordinate remains the same as x = 4 without end.\r<BR>\n" );
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document.write( "Also, vertical lines have NO SLOPE.  So, the line x = 4 has no slope.\r<BR>\n" );
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