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Q&A #431


Teaching exponential function

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From: Claudia (for Teacher2Teacher Service)
Date: Jul 23, 1998 at 19:45:40
Subject: Re: Teaching exponential function

The Exponential Function has TONS of applications.  It is one of the
richest of the mathematical functions for applications.  For example,
interest compounded continuously, radioactive decay and lots more.  

Please find a resource that you can use to generate all different kinds of
applications.   At one time, it was believed that the earth would run out of
food, since Malthus predicted that population was an exponential function!

Have the students examine behaviors of the graph.  For example,  the
basic graphs  y = a^x  (where a = +value) all go through the point
(0,1).  They are all asymptotic to the x-axis.   

good luck!

-Claudia, for the Teacher2Teacher service

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