Answer:

Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form
or 
In a direct variation the constant of proportionality k is equal to the slope m and the line passes through the origin
In this problem the line passes through the origin
therefore
The linear equation of the figure represent a direct variation
Let

Find the slope m
The formula to calculate the slope between two points is equal to

substitute


The equation of the line is equal to
