The controller of Dugan Industries has collected the following monthly expense data for use in analyzing the cost behavior of maintenance costs.

Instructions(a) Determine the fixed and variable cost components using the high-low method.(b) Prepare a graph showing the behavior of maintenance costs, and identify the fixed and variable cost elements. Use 200 unit increments and $1,000 costincrements.

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Total Total Maintenance Costs Machine Hours Month January February $2,400 300 3,000 400 March 3,600 600 April May June 4,500 3,200 790 500 4,900 800