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