Question

what is the constant of proportionality? write your answer as a whole number or decimal.
scoops per liter

Explanation:

Step1: Identify a point on the line

From the graph, when \( x = 1 \) (liters), the \( y \)-value (scoops) is \( 4 \).

Step2: Calculate the constant of proportionality

The constant of proportionality \( k \) for a proportional relationship \( y = kx \) is \( k=\frac{y}{x} \). Substituting \( x = 1 \) and \( y = 4 \), we get \( k=\frac{4}{1}=4 \).

Answer:

4