Answer:
Exponential function
Explanation:
we know that
In this problem we have a exponential function of the form
![f(x)=a(b^(x))](https://img.qammunity.org/2020/formulas/mathematics/middle-school/2slaif8k8lw5gb6yadst4ilvo7awjvuexm.png)
where
x is the time in years
f(x) is the number of mice living in a field
a is the initial value (originally number of mice)
b is the base
r is the growth rate
b=(1+r)
In this problem
r=200%=200/100=2
b=1+2=3
The exponential function will be
![f(x)=a(3^(x))](https://img.qammunity.org/2020/formulas/mathematics/middle-school/23jhm4cyi7bsym2dk3g992qhv5xozfcf3b.png)