Given:
The number of alligators in a wildlife is given by the function

To find:
The average growth rate of change from the 4th year to the 7th year.
Solution:
We have,

For x=4, we get



For x=7, we get



Now, the average growth rate of change from the 4th year to the 7th year is




Therefore, the average growth rate of the change from the 4th year to the 7th year is 174.70 per year.