In the month of October, the population of a species of fish in a river increased by a factor of 1.05 every day. The function below shows the number of fish in the river f(x) after x days:

f(x) = 100(1.05)x

Which of the following is a reasonable domain for the function?

0 ≤ x ≤ 100
0 ≤ x ≤ 31
All positive integers greater than 100
All positive integers less than 100

Question

In the month of October, the population of a species of fish in a river increased by a factor of 1.05 every day. The function below shows the number of fish in the river f(x) after x days:

f(x) = 100(1.05)x

Which of the following is a reasonable domain for the function?

 0 ≤ x ≤ 100
 0 ≤ x ≤ 31
 All positive integers greater than 100
 All positive integers less than 100