document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=812489>Question 812489</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A line passes through the points (p, a) and (p, –a) where p and a are real numbers. What is the y-intercept? Explain your reasoning. \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 #489174 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=489174\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a-(-a)=2a<BR>\n" );
document.write( "p-p=0<BR>\n" );
document.write( "slope is undefined<BR>\n" );
document.write( "x=p<BR>\n" );
document.write( "It is a vertical line where x always equals  p and y can be anything.<BR>\n" );
document.write( "There is no y intercept because x never equals zero.\r<BR>\n" );
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