document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=410879>Question 410879</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When rewriting an exponential expression with a negative exponent and a positive base to an expression containing only a positive exponent, does the sign of the base change? And why not<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #288851 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=288851\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When rewriting an exponential expression with a negative exponent and a positive base to an expression containing only a positive exponent, does the sign of the base change? And why not\r<BR>\n" );
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document.write( "Example<BR>\n" );
document.write( "y = 3^(-x)<BR>\n" );
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document.write( "Answer to your question.<BR>\n" );
document.write( "No; the negative in the exponent means \"invert the base\".<BR>\n" );
document.write( "It does not mean \"take the negative of the base\".<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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