document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1124891>Question 1124891</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the change in temperature from 15° to -9° </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #741170 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=741170\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Temperature change = (final reading) - (initial reading) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-9%5Eo+-+15%5Eo+=+highlight%28+-24%5Eo+%29+ ALIGN=MIDDLE  ALT=\"+-9%5Eo+-+15%5Eo+=+highlight%28+-24%5Eo+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br>\r<BR>\n" );
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document.write( "The minus sign tells you there was a decrease in temperature.   If you want (or if you are required) to specify the change as a positive number then it is acceptable to say  \"the temperature decreased by 24 degrees.\"<br> \r<BR>\n" );
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document.write( "( It is analogous to calculating the net profit for a company:  when the calculation comes out negative, one might prefer to say the company lost X dollars, rather than  \"the company made -X dollars.\"  )      </SPAN>\n" );
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