The population growth model provided is:

$P = 230(1.04)^t$

This model is in the form of exponential growth, which can be written as:

$P = P_0 (1 + r)^t$

Where:

• $P_0$ is the initial population,
• $r$ is the growth rate,
• $t$ is the time in years.

Here, $1 + r = 1.04$, meaning that the growth rate $r$ is 0.04 or 4%.

So, the growth rate of this population is 4%.

Would you like a detailed explanation of exponential growth, or do you have any other questions?

Here are some related questions:

1. How do you calculate the population at any given year using this model?
2. What happens to the population if the growth rate increases to 6%?
3. How can we determine the doubling time for this population?
4. What is the significance of exponential growth in biological populations?
5. How would you modify the equation if the population decreases by 4% annually?

Tip: In exponential growth models, the base of the exponential term (1 + r) directly represents the growth factor.