Rosie is planning to make raspberry lemonade for a party. She needs to add 2 scoops of raspberry to every 5 cups of lemonade. The data table shows the ratios needed. At what ratio does the constant of proportionality appear?

To determine the constant of proportionality for the ratio of raspberry to lemonade, we can start with the information provided: Rosie uses 2 scoops of raspberry for every 5 cups of lemonade. This can be written as the ratio \( \frac{2}{5} \).

The constant of proportionality appears in the form of a coordinate point \((x, y)\), where \( x \) represents the quantity of lemonade and \( y \) represents the quantity of raspberry.

When we express the ratio \( \frac{y}{x} \):

• \( y = 2 \) (scoops of raspberry)
• \( x = 5 \) (cups of lemonade)

Therefore, the constant of proportionality can be represented as the point \( (5, 2) \) when considering the total lemonade first.

So the correct response is:

(5, 2)