Chapter 19 Cost-Volume-Profit Analysis 979 EX 19-2 Identify cost graphs The following cost graphs illustrate various types of cost behavior: Cost Graph One Obj. 1 Cost Graph Two 0 Total Units Produced 0 Total Units Produced Cost Graph Three Cost Graph Four 0 Total Units Produced 0 Total Units Produced For each of the following costs, identify the cost graph that best illustrates its cost behavior as the number of units produced increases: A. Total direct materials cost B. Electricity costs of $1,000 per month plus $0.10 per kilowatt-hour C. Per-unit cost of straight-line depreciation on factory equipment D. Salary of quality control supervisor, $20,000 per month E. Per-unit direct labor cost