Problem 2 Your business is trying to project total revenue for this upcoming year, but only has the information available to estimate marginal revenue. Recall that MR(q)=R'(q); that is, marginal revenue is the derivative of revenue. Based on the data available, you generate the following table: Units Sold Marginal Revenue 0 SO 100 $10 200 $30 300 $40 a. Plot these points by hand, letting the y-axis represent marginal revenue and the x-axis represent units sold; then sketch a curve passing through these points to model the marginal revenue function, MR(q). b. Using 3 equal-width intervals, approximate the total revenue when 300 units are sold. You may use either right or left endpoints but be sure to include approximationg rectangles in your sketch. Is your estimate an over-estimate or an under-estimate? How can you tell