A Study of Driving Costs of 1992 Model Subcompact (Four-Cylinder)

Short Answer

A study of driving costs of 1992 model subcompact (four-cylinder) cars found that the average cost (car payments, gas, insurance, upkeep, and depreciation), measured in cents/mile, is approximated by the function
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where x denotes the number of miles (in thousands) the car is driven in a year. What happens to the average cost as the number of miles driven increases without bound? Express your answer to the nearest tenth, if necessary.
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It approaches __________ ¢/mi.