An insect population after x months can be modeled by the function g(x) = 15(1.2)^X. Which statement is the best interpretation of one of the values in this function?
The insect population increased at a rate of 20% each month.
The insect population increased by 12 insects each month.
The insect population decreased by 12 insects each month.
The insect population decreased at a rate of 20% each month.