Question 3 (9 points) The average cost of a refrigerator is $700. On average, it costs $100 to provide the electricity for one year and the appliance will last for 15 years. a) Determine a function that gives the annual cost of a refrigerator as a function of the number of years you own the refrigerator. b) Determine the total annual cost for a refrigerator. Make sure you include the cost of the electricity and remember, you have the refrigerator for 15 years. c) What are the asymptotes for this function and what do they mean in the context of the problem? Is this realistic? d) If another brand of refrigerator costs $1000, but it can last at least 20 years, is this refrigerator worth the difference in cost