2. Calculating marginal revenue from a linear demand curve The blue curve on the following graph represents the demand curve facing a firm that can set its own prices. Use the graph input tool to help you answer the following questions. You will not be graded on any changes you make to this graph. Note: Once you enter a value in a white field, the graph and any corresponding amounts in each grey field will change accordingly. Graph Input Tool ? Market for Goods 250 225 25 200 Quantity Demanded (Units) Demand Price (Dollars per unit) 175 125.00 150 PRICE (Dollars per unit) 125 100 75 Demand 50 25 0 0 40 45 50 5 10 15 20 25 30 35 QUANTITY (Units) On the graph input tool, change the number found in the Quantity Demanded field to determine the prices that correspond to the production of o, 10, 20, 25, 30, 40, and 50 units of output. Calculate the total revenue for each of these production levels. Then, on the following graph, use the green points (triangle symbol) to plot the results. 3130 2817 Total Revenue 2504 2101 1878 TOTAL REVENUE (Dollars) 1565 1252 939 626 313 0 0 5 10 40 45 50 15 20 25 30 35 QUANTITY (Number of units) Calculate the total revenue if the firm produces 10 versus 9 units. Then, calculate the marginal revenue of the 10th unit produced. The marginal revenue of the 10th unit produced is $ 1. Calculate the total revenue if the firm produces 20 versus 19 units. Then, calculate the marginal revenue of the 20th unit produced. The marginal revenue of the 20th unit produced is $ Based on your answers from the previous question, and assuming that the marginal revenue curve is a straight line, use the black line (plus symbol) to plot the firm's marginal revenue curve on the following graph. (Round all values to the nearest increment of 50.) 250 200 Marginal Revenue 150 MARGINAL REVENUE (Dollars) 100 O -50 0 5 10 15 35 40 45 50 20 25 30 QUANTITY (Units) Comparing your total revenue graph to your marginal revenue graph, you can see that when total revenue is increasing, marginal revenue is negative positive equal to zero