document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=349402>Question 349402</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the domain of the function.<BR>\n" );
document.write( "f(x) = sqrt(13-x)\r<BR>\n" );
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document.write( "Answer choices:<BR>\n" );
document.write( "A. (negative infinity, 13) or (13, infinity)<BR>\n" );
document.write( "B. (sqrt(7), infinity) <BR>\n" );
document.write( "C. (negative infinity, 13]<BR>\n" );
document.write( "D. (negative infinity, infinity)\r<BR>\n" );
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document.write( "Thanks! (: </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #249752 by </B><A HREF=/tutors/aboutme.mpl?userid=haileytucki><B>haileytucki(390)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=haileytucki><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=haileytucki><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=249752\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Yur answer is C\r<BR>\n" );
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document.write( "f(x)=~(13-x)\r<BR>\n" );
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document.write( "The domain of an expression is all real numbers except for the regions where the expression is undefined.  This can occur where the denominator equals 0, a square root is less than 0, or a logarithm is less than or equal to 0.  All of these are undefined and therefore are not part of the domain.<BR>\n" );
document.write( "(-x+13)<0\r<BR>\n" );
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document.write( "Solve the equation to find where the original expression is undefined.<BR>\n" );
document.write( "x>13\r<BR>\n" );
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document.write( "The domain of the rational expression is all real numbers except where the expression is undefined.<BR>\n" );
document.write( "x<=13_(-I,13] </SPAN>\n" );
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