Becca bought a car in 2015 for $12,000.

The value of the car depreciates by 16% each year.
Write a function that expresses the example

Thank you so much for the help :)

v = 12000 * 0.84^t

where t is the number of years after 2015

You're welcome! To write a function that expresses the example, we can create a Python function that calculates the value of the car after a given number of years. Here's how you can do it:

```python
def calculate_car_value(years):
car_value = 12000 # Initial car value in 2015

for _ in range(years):
car_value -= car_value * 0.16 # Depreciates by 16% each year

return car_value
```

In this function, the `years` parameter represents the number of years since the car was purchased. The initial car value is set to $12,000 in 2015. Then, using a loop, we apply a 16% depreciation rate to the car's value each year. The final value of the car after the specified number of years is returned.

To use the function and calculate the car's value after, for example, 4 years, you can simply call the function like this:

```python
value_after_4_years = calculate_car_value(4)
print(value_after_4_years)
```

This will output the updated value of the car after 4 years based on the given depreciation rate.

Let me know if there's anything else I can help you with!