1. A cost function, (), gives the total cost of producing units of a product. Suppose the cost function faced by a cat food company is () = 2 + 5 + 6, where is the quantity produced, measured tones of cat food, and () is the total cost of producing tones. Supposed the cost is measured in thousands of dollars. For example, the cost of producing 1 ton (i.e., 1,000 kilograms) of cat food is (1) = 12 + 5 1 + 6 = $12 thousand.

a. What is the cost of producing zero tons of cat food?

b. What is the cost of producing 4 tons of cat food?

c. What is the cost of producing the 4-th ton of cat food (this question is tricky!)

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