Question

m3|l2 graphs of proportional relationships the constant of proportionality is

inches per hour. rainfall over time rainfall (in) 0 1 2 3 4 5

Explanation:

Step1: Identify coordinates

From the graph, at \( x = 2 \) hours, \( y = 0.4 \) inches.

Step2: Calculate constant of proportionality

The constant of proportionality \( k \) for a proportional relationship \( y = kx \) is \( k=\frac{y}{x} \). Substituting \( y = 0.4 \) and \( x = 2 \), we get \( k=\frac{0.4}{2}=0.2 \).

Answer:

0.2