Question

You need to rent a car and compare the charges of three different companies. Company A charges 20 cents per mile plus $20 per day. Company B charges 10 cents per mile plus $35 per day. Company C charges $70 per day with no mileage charge. (a) Find formulas for the cost of driving cars rented from companies A, B, and C, in terms of x, the distance driven in miles in one day. (b) Graph the costs for each company for 0 ≤ x ≤ 500. Put all three graphs on the same set of axes. (c) What do the slope and the vertical intercept tell you in this situation? (d) Use the graph in part (b) to find under what circumstances company A is the cheapest. What about Company B? Company C? Explain why your results make sense.

Answer 1

Answer:

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