Question

Apples at the local farmer's market cost $1.25 per 1 pound.



Write a function rule`f` that gives the total cost of apples in terms of the number of pounds, `x`

Answer 1

To create a function \( f \) that gives the total cost of apples in terms of the number of pounds \( x \), you can use the following linear equation based on the cost per pound.

Since the price of apples is $1.25 per pound, the total cost \( f(x) \) for \( x \) pounds can be expressed as:

\[
f(x) = 1.25 \times x
\]

Here's how you can implement this function in Python:

```python
def f(x):
return 1.25 * x
```

### Usage
- If you want to calculate the cost for 3 pounds of apples, you would call the function like this:

```python
cost = f(3)
print(cost) # This will print 3.75, which is the cost for 3 pounds of apples.
```

You can plug in any value for \( x \) to get the corresponding total cost of apples.