document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=121909>Question 121909</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you give me a detailed explanation why the line x=4 is a vertical line?\r<BR>\n" );
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document.write( "Thanks in advance<BR>\n" );
document.write( "Sydoni </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #89490 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=89490\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Can you give me a detailed explanation why the line x=4 is a vertical line?<BR>\n" );
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document.write( "You need two points to determine a line.<BR>\n" );
document.write( "Plot two points with x=4 and draw a line thru them:<BR>\n" );
document.write( "Let one point be (4,0); let another be (4,3)<BR>\n" );
document.write( "Notice that the line is veritical no matter what<BR>\n" );
document.write( "two points you pick.<BR>\n" );
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document.write( "cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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