document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=102466>Question 102466</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My book doesn't give much help on solving this. Find the domain of f(x)3x+1/<BR>\n" );
document.write( "x^2+4<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #74464 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=74464\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28x%29=%283x%2B1%29%2F%28x%5E2%2B4%29 ALIGN=MIDDLE  ALT=\"f%28x%29=%283x%2B1%29%2F%28x%5E2%2B4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Start with the given function\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B4=0 ALIGN=MIDDLE  ALT=\"x%5E2%2B4=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Set the denominator equal to zero. Remember, dividing by 0 is undefined. So if we find values of x that make the denominator zero, then we must exclude them from the domain.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=-4 ALIGN=MIDDLE  ALT=\"x%5E2=-4\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract 4 from both sides\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=0%2B-sqrt%28-4%29 ALIGN=MIDDLE  ALT=\"x=0%2B-sqrt%28-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Take the square root of both sides\r<BR>\n" );
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document.write( "Since you cannot take the square root of a negative number and get a real number, the result will be imaginary\r<BR>\n" );
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document.write( "So that means there are no real numbers which will make the denominator equal to zero\r<BR>\n" );
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document.write( "So the domain is: \r<BR>\n" );
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document.write( "x is the element of all real numbers </SPAN>\n" );
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