Question

This graph shows a proportional relationship.

What is the constant of proportionality?

Answer 1

Answer:

13.8

Step-by-step explanation:

constant of proportionality is the 'slope' of the line

we use this formula to find slope: $\frac{y-y}{x-x}$

(82.8-27.6) ÷ (6-2)  ⇒ 55.2/4  ⇒ 13.8