The linear equation shown in the graph is:
y = 7.5*x
How to find the linear equation?
First, we can see that the line passes through the origin, the point (0, 0), so the y-intercept of this line is b = 0, which means that we have a proportional relation.
y = a*x
To find the value of a we can use any point in the graph, we can see that the line passes through (4, 30), replacing these values we get:
30 = a*4
30/4 = a
7.5 = a
The linear equation is:
y = 7.5*x