# Exponential Equations : Word Problem

The population of the green deer in 1999 was 17000. In 2003 there were only 15000. Write an exponential equation to express the poulation decrease p(t) in terms of t years.

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#### Solution Preview

So the population decreased from 17000 to 15000 in 4 years. That

is from 1999 to 2003.

The general exponential equation for this decrease is

p(t) = Ae^(b*t)

where A is the initial deer population and t is the time in years

b is called the rate of decrease....Note that b has to ...

#### Solution Summary

A word problem is solved using exponential functions.

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