The graph below shows monthly data collected on facilities maintenance department year 50,000 WEE 45000 49,000 35.000 30.000 Maintenance Department Costs 25.000 30,000 15.000 10,000 5.000 1,000 2.000 3,000 of Patient-Days 4.000 5.000 6,000 From the graph total fixed cost is approximately O a $10,000 b. $9,500 O.C$15,000 d. 511,000