document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=864782>Question 864782</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An investment of $500 at 8% per annum compounded annually grows to A$ in n years<BR>\n" );
document.write( "a) solve this equation for n<BR>\n" );
document.write( "b) so expressing n as a log function of A <BR>\n" );
document.write( "calculate the value of n for each value of A 1) A = 1250 2) A = 350 <BR>\n" );
document.write( "c) graph the function in part a for 0<A<1250<BR>\n" );
document.write( "d) state the domain and range\r<BR>\n" );
document.write( "\n" );
document.write( "Can you please help me out ? Thanks so much in advance:) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #521282 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=521282\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An investment of $500 at 8% per annum compounded annually grows to A$ in n years<BR>\n" );
document.write( "Equation:: A = 500(1+0.08)^n<BR>\n" );
document.write( "---------------------------------------<BR>\n" );
document.write( "a) solve this equation for n<BR>\n" );
document.write( "1.08^n = A/500<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "b) so expressing n as a log function of A<BR>\n" );
document.write( "n*log(1.08) = log[A/500]<BR>\n" );
document.write( "n = [log(A)-log(500)]/log(1.08)<BR>\n" );
document.write( "--------------------------------------------- <BR>\n" );
document.write( "calculate the value of n for each value of A <BR>\n" );
document.write( "1) A = 1250<BR>\n" );
document.write( "n = [log(1250)-log(500)]/log(1.08) = 11.91<BR>\n" );
document.write( "------------------------------------------- <BR>\n" );
document.write( "2) A = 350<BR>\n" );
document.write( "n = [log(350)-log(500)]/log(1.08) = -4.6345<BR>\n" );
document.write( "=================================================<BR>\n" );
document.write( " <BR>\n" );
document.write( "c) graph the function in part a for 0<BR>\n" );
document.write( "Note: 0 is not a variable of that equation.<BR>\n" );
document.write( "---------------------------------------- <BR>\n" );
document.write( "d) state the domain and range <BR>\n" );
document.write( "Domain: n is integer >= zero<BR>\n" );
document.write( "Range: A is a Real Numbers >= 500<BR>\n" );
document.write( "=================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );