The balance on your account is decreasing by $400 per day.

Explanation:

• The given function is $B(t) = 5000 - 400t$, where $B(t)$ is the balance, and $t$ is time in days.
• The term $-400t$ indicates a decrease of $400 for every day, since the coefficient of $t$ is negative.

Would you like further details or have any questions?

Here are 5 related questions:

1. What will your balance be after 10 days?
2. How long will it take for your balance to reach $0?
3. How would the function change if your balance decreased by $300 per day?
4. What is your initial balance at $t = 0$?
5. How can you graph the function $B(t)$ to visualize the change?

Tip: To find how fast something is changing, always look at the coefficient of the variable representing time!