The constant of proportionality is Response area
Write an equation that represents this graph. Response area
This is a proportional relationship because the y-intercept is
zero and the graph is a straight line passing through the origin. The constant of proportionality is the ratio of the response area to the independent variable.
Let's say the independent variable is represented by x and the response area is represented by y. The equation that represents this proportional relationship is:
y = kx
Where k is the constant of proportionality.