Hoi Chong Transport, Ltd., operates a fleet of delivery trucks in Singapore. The company has determined that if a truck is driven 165,000 kilometers during a year, the average operating cost is 12.9 cents per kilometer. If a truck is driven only 110,000 kilometers during a year, the average operating cost increases to 16.2 cents per kilometer.

Required:

1. Using the high-low method, estimate the variable operating cost per kilometer and the annual fixed operating cost associated with the fleet of trucks.

2. Express the variable and fixed costs in the formY = a + bX.