Chapter 4 Cost-Volume-Profit Analysis: A Managerial Planning Tool 4-4 In the cost-volume-profit grap a. the break-even point is found where the total revenue curve crosses the x-axis. b. the area of profit is to the lett of the break-even point. c. the area of loss cannot be determined. d. both the total revenue curve and the total cost curve appear. e. neither the total revenue curve nor the total cost curve appear. n important assumption of cost-volume-profit analysis is that a. both costs and revenues are linear functions. 4-5 A ationshins are analvzed within the relevant range