document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1083440>Question 1083440</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I find the domain of the function g(x)=-x^2, and how do I find the domain/range of an equation in general? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #697433 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=697433\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The domain is all the values x may take on. g(x)=-x^2 has a domain of all real numbers, for x may take on any number.  When there are radicals, the domain can't make the value under the radical negative.  If there is a fraction, the denominator cannot be 0.\r<BR>\n" );
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document.write( "The range is all the values y may have.  Here, since x^2 is always 0 or positive, the range is 0 to negative infinity.  One can graph equations to get an idea, but often one has to put in values of x and see what y is. </SPAN>\n" );
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