**Concept: The question tests on the fundamentals of Coordinate Geometry**

**Solution:**

Equation of a line = y = mx + c

Since the line is passing through the origin, c = 0 and y = mx

Also given that the line passes through the points (6, 60).

Putting it in the above equation, 6 = m*6. Therefore m = 1 and the equation of the line is y = x

Now if the function is defined as f(x) = y = x + 3, then y = x is defined by f(x - 3)**Option E**