document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=447445>Question 447445</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When rewriting an exponential expression with a negative exponent and positive base to an expression containing only a posiive exponent, does the sign of the base change?\r<BR>\n" );
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document.write( "I apppreciate your help<BR>\n" );
document.write( "Thank You !<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #308016 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=308016\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When rewriting an exponential expression with a negative exponent and positive base to an expression containing only a positive exponent, does the sign of the base change?<BR>\n" );
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document.write( "No; the negative in the exponent means \"invert the base\";<BR>\n" );
document.write( "it does not mean you should change the sign of the base.\r<BR>\n" );
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document.write( "Ex:<BR>\n" );
document.write( "y = 10*2^(-t)<BR>\n" );
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document.write( "y = 10*(1/2)^t<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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