Apples at the local farmer's market cost $1.25 per pound. Write a function rule`f` that gives the total cost of apples in terms of the number of pounds, x.

Question

f(x) =

number of pounds (x) cost or apples (f)

0

1

2

3

4

5

6

10

x

Answer 1

To express the total cost of apples in terms of the number of pounds $x$, you can write the function rule $f$ as follows:

$$f(x)=1.25x$$

where $f(x)$ is the total cost of apples in dollars and $x$ is the number of pounds.

Now, let's complete the table for the number of pounds and the corresponding cost using the function:

| Number of Pounds (x) | Cost of Apples (f) | |-----------------------|---------------------| | 0 | f(0) = 1.25 * 0 = $0.00 | | 1 | f(1) = 1.25 * 1 = $1.25 | | 2 | f(2) = 1.25 * 2 = $2.50 | | 3 | f(3) = 1.25 * 3 = $3.75 | | 4 | f(4) = 1.25 * 4 = $5.00 | | 5 | f(5) = 1.25 * 5 = $6.25 | | 6 | f(6) = 1.25 * 6 = $7.50 | | 10 | f(10) = 1.25 * 10 = $12.50 |

So, in summary:

$$f(x)=1.25x$$ is the function that describes the cost of apples based on the weight in pounds.