Question

This graph shows a proportional relationship.

What is the constant of proportionality?

Answer 1

13.8

Explanation:

constant of proportionality is the 'slope' of the line

we use this formula to find slope:
`(y-y)/(x-x)`

(82.8-27.6) ÷ (6-2) ⇒ 55.2/4 ⇒ 13.8