Question

The graph below represents the number

of containers and liters of water contained
in the containers. What is the constant of
proportionality?​

Answer 1

`k=10\ liters/container`

Explanation:

The picture of the question in the attached figure

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
`k=(y)/(x)` or
`y=kx`

Let

x ---> the number of containers

y ---> liters of water contained in the containers

Find the constant of proportionality k

`k=(y)/(x)`

From the graph take the point (2,20)

substitute

`k=(20)/(2)=10\ liters/container`

The equation is equal to

`y=10x`