Answer:
The equation of this proportional relationship is y = 5x
Explanation:
In order to find this, start by finding two points on the line. We'll use (0, 0) and (2, 10). From there we start by finding the slope.
m(slope) = (y2 - y1)/(x2 - x1)
m = (10 - 0)/(2 - 0)
m = (10)/(2)
m = 5
Now using that, we can plug it, along with a point into point-slope form to get the answer.
y - y1 = m(x - x1)
y - 0 = 5(x - 0)
y = 5x