document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1042376>Question 1042376</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The balance of an investment is decreasing according to the rule<BR>\n" );
document.write( "Next year's balance = 0.85 × Current balance.\r<BR>\n" );
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document.write( "If the original value of the investment is $600, find an exponential formula that gives the balance B after t years. <BR>\n" );
document.write( "B =  _____\r<BR>\n" );
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document.write( "Sorry, I just cannot get this one right.<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 #657345 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=657345\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=black size=3><BR>\n" );
document.write( "Each time, you're multiplying by 0.85 which suggests we have an exponential function here. The base of the exponential is 0.85 with the exponent being t. The original investment is tacked on out front. So the function is\r<BR>\n" );
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document.write( "B = <font color=red>600*(0.85)^t</font><BR>\n" );
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