document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=604864>Question 604864</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can anyone help me with this problem? Thank You! Thank You!\r<BR>\n" );
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document.write( "Find all numbers for which the rational expression is undefined.\r<BR>\n" );
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document.write( "-17/-18x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #381499 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=381499\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A rational expression is undefined when and only when its denominator is zero,<BR>\n" );
document.write( "because division by zero is not defined.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-17%29%2F%28-18x%29 ALIGN=MIDDLE  ALT=\"%28-17%29%2F%28-18x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > is undefined when and only when <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-18x=0 ALIGN=MIDDLE  ALT=\"-18x=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "That only happens when <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=0%29 ALIGN=MIDDLE  ALT=\"highlight%28x=0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "For any other value of x, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-18x ALIGN=MIDDLE  ALT=\"-18x\"   DISABLED_style= \"max-width:90%; height:auto;\" > is not zero and the rational<BR>\n" );
document.write( "expression <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-17%29%2F%28-18x%29 ALIGN=MIDDLE  ALT=\"%28-17%29%2F%28-18x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > is defined (It has a value). </SPAN>\n" );
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