document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1160620>Question 1160620</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose it takes 12 hours for a certain strain of bacteria to reproduce by dividing in half. If <BR>\n" );
document.write( "35 bacteria are present to begin with, the total number present after <BR>\n" );
document.write( "x days is \r<BR>\n" );
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document.write( "f(x)=35 * 4 ^ x<BR>\n" );
document.write( "Fine the total number present after 1, 2, and 3 days. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #783995 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=783995\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what this is saying is that the number of bacteria doubles every 12 hours.\<BR>\n" );
document.write( "that means it is quadrupling every 24 hours, which is every day.<BR>\n" );
document.write( "you start with 35 on day 0.<BR>\n" );
document.write( "on day 1 you have 4 times as much as on day 0.<BR>\n" );
document.write( "on day 2, you have 4 times as much as on day 1.<BR>\n" );
document.write( "on day 3, you have 4 times as much as on day 2.<BR>\n" );
document.write( "etc.....\r<BR>\n" );
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document.write( "the formula is:<BR>\n" );
document.write( "f = p * 4 ^ x, where x is the number of days.<BR>\n" );
document.write( "on day 0, you have 35 * 4 ^ 0 = 35.<BR>\n" );
document.write( "on day 1, you have 35 * 4 ^ 1 = 140<BR>\n" );
document.write( "on day 2, you have 35 * 4 ^ 2 = 560<BR>\n" );
document.write( "on day 3, you have 35 * 4 ^ 3 = 2,240\r<BR>\n" );
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document.write( "the formula above assumes you start on day 0.<BR>\n" );
document.write( "if you start on day 1, then the formula becomes:<BR>\n" );
document.write( "f = p * 4 ^ (x - 1)<BR>\n" );
document.write( "using this formula, you would get:<BR>\n" );
document.write( "on day 1, you have 35 * 4 ^ 0 = 35<BR>\n" );
document.write( "on day 2, you have 35 * 4 ^ 1 = 140<BR>\n" );
document.write( "on day 3, you have 35 * 4 ^ 2 = 560<BR>\n" );
document.write( "on day 4, you have 35 * 4 ^ 3 = 2,240\r<BR>\n" );
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document.write( "since your formula assumes 4 ^ x, then i believe the first day is day 0.\r<BR>\n" );
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document.write( "the function can be graphed as shon below.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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