document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=98347>Question 98347</A>: <I><SPAN STYLE=\"word-break: break-all;\"> state the domain of the following:\r<BR>\n" );
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document.write( "m(x) = 5 / (x^2 + 9)\r<BR>\n" );
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document.write( "I know that the domain will be all x where the denominator does not equal zero, but when I set the denominator to zero, I get stuck:\r<BR>\n" );
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document.write( "x^2 + 9 = 0<BR>\n" );
document.write( "x^2 = -9<BR>\n" );
document.write( "x = sqr root -9  ----> you can't take the squareroot of a negative number, so I'm stuck. \r<BR>\n" );
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document.write( "Please help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #71523 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=71523\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You are stuck because x^2+9 cannot be zero in the Real<BR>\n" );
document.write( "Number System.<BR>\n" );
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document.write( "Graph y=x^2+9 and you will see it is always above the x-axis.<BR>\n" );
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document.write( "Or consider:<BR>\n" );
document.write( "If x is Real, x^2 is always greater than or equal to zero;<BR>\n" );
document.write( "so if you add 9 the result is always greater that or <BR>\n" );
document.write( "equal to 9.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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