Automobile Costs A 2003 Subaru Outback wagon costs $23,500 and gets 22 miles per gallon. Assume that gasoline costs $4 per gallon.
(a) What is the cost of gasoline per mile for the Outback wagon?
(b) Assume that the total cost of owning the car consists of the price of the car and the cost of gasoline. (In reality, the total cost is much more than this.) For the Subaru Outback, find a linear function describing the total cost, with the input variable being the number of miles driven.
(c) What is the slope of the graph of the function in part (b), and what does it signify?
(d)What is the y-intercept of the graph of the function in part (b), and what does it signify?
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