# A certain species of fish has been declining in population by 7% per year. That means its rate of decay is 0.93. What is the fish population in year 4 if the initial population was 500,000?

##### 1 Answer

Jan 1, 2016

#### Explanation:

This can be expressed as an exponential function in the form

#f(x)=a(b^x)# ,

where

#f(x)=500000(0.93^x)#

#f(4)=500000(0.93^4)approx374026#