There are 20 wild pigs on an island and the number of pigs doubled each year for the past 5 years. this situation models what type of function

We have been given that there are 20 wild pigs on an island and the number of pigs doubled each year for the past 5 years. We are asked to find that which function will represent this situation.

Let t be number of years. Our function will be an exponential function as the number of pigs doubled each year for the last 5 years.

Now we can write a function as,

20 is the initial number of pigs on island.

Therefore, increase in number of pigs can be modeled by an exponential function.  

final answer is : )