Problem 12. (1 point) Suppose that an object moves along the y-axis so that its location is y = x + 5x at time x. (Here y is in meters and x is in seconds.) (A) Find the average velocity ( the average rate of change of y with respect to x) for x changing from 2 to 8 seconds. Don't forget to include units in all your answers. Average velocity = (B) Find the average velocity for x changing from 4 to 4 + h sec- onds. Average velocity = (C) Find the instantaneous velocity at x = 4 seconds . Instantaneous velocity = Answer(s) submitted