document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=391197>Question 391197</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I go about solving this: \"equation of vertical line that contains (-4, 8) its would also be great if you could tell me the general linear form. I have no idea how to begin solving this because I do not have the formula. Please and thank you very much. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #277519 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=277519\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If a linear equation is vertical, then its slope is undefined. The only way for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=DELTA%28y%29%2FDELTA%28x%29 ALIGN=MIDDLE  ALT=\"DELTA%28y%29%2FDELTA%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > (the expression for slope) to be undefined is if there is some <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=DELTA%28y%29 ALIGN=MIDDLE  ALT=\"DELTA%28y%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > such that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=DELTA%28x%29+=+0 ALIGN=MIDDLE  ALT=\"DELTA%28x%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >. This means that for some change in y, x is held constant. Since the line goes through (-4, 8), then x is held constant at -4. Therefore the equation is x = -4. </SPAN>\n" );
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