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Following are five graphs representing various cost behaviors. (1) Identify whether the cost behavior in each Exercise 18-2 graph is mixed, step-wise, fixed, variable, or curvilinear. (2) Identify the graph (by number) that best illustrates Cost behavior in graphs each cost behavior: (a) Factory policy requires one supervisor for every 30 factory workers; (b) real estate taxes C1 on factory; (c) electricity charge that includes the standard monthly charge plus a charge for each kilowatt hour (d) commissions to salespersons; and (e) costs of hourly paid workers that provide substantial gains in effi- ciency when a few workers are added but gradually smaller gains in efficiency when more workers are added. 2. 3. 4. 5. CO Volume Volume Volume Volume Volume