document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=585232>Question 585232</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I find all numbers for which the rational expression is undefined? The rational expression is 9/9w+8. Thank you in advance for your help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #373220 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=373220\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You CANNOT divide by zero.\r<BR>\n" );
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document.write( "So the denominator 9w+8 CANNOT be zero. If it were, then \r<BR>\n" );
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document.write( "9w+8 = 0\r<BR>\n" );
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document.write( "solve for w to get\r<BR>\n" );
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document.write( "9w+8 = 0\r<BR>\n" );
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document.write( "9w = -8\r<BR>\n" );
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document.write( "w = -8/9\r<BR>\n" );
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document.write( "So the value w = -8/9 makes the denominator zero, which is what we do NOT want (since we do NOT want to divide by zero).\r<BR>\n" );
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document.write( "So the value <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-8%2F9 ALIGN=MIDDLE  ALT=\"-8%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" > makes the rational expression undefined.\r<BR>\n" );
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