Question

find the price (dollars per kilogram) of oranges at the grocery store.

\\(\square\\) dollars per kilogram

Explanation:

Identify a point on the graph

The graph shows a proportional relationship between the mass of oranges in kilograms (horizontal axis) and the total cost in dollars (vertical axis).
A clear point plotted on the line is \((1, 3)\).

Calculate the unit rate

Using the point \((1, 3)\), where \(x = 1\) kilogram and \(y = 3\) dollars:

$$ \text{Unit Rate} = \frac{\text{Total cost}}{\text{Mass}} = \frac{3\text{ dollars}}{1\text{ kilogram}} = 3\text{ dollars per kilogram} $$

Answer:

Find the price (dollars per kilogram) of oranges at the grocery store.

<blank>3</blank> dollars per kilogram