document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=453165>Question 453165</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Charlie uses the function f(x) = 2x2 + 5x + 3 to track the temperature of a substance, where x represents the time. When you evaluate f(5) you find that the temperature of the substance is 78°C. What is the domain of the situation of Charlie's quadratic function? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311370 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=311370\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Charlie uses the function f(x) = 2x^2 + 5x + 3 to track the temperature of a substance, where x represents the time. <BR>\n" );
document.write( "When you evaluate f(5) you find that the temperature of the substance is 78°C.<BR>\n" );
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document.write( "What is the domain of the situation of Charlie's quadratic function?<BR>\n" );
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document.write( "Probably x >= 0 if unless -time has some meaning.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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