Question: A laboratory study investigating the relationship between diet and weight in adult humans found that the weight of a subject, W, in pounds, was a function, W = f(c), of the average number of Calories per day, c, consumed by the subject.
(a) In terms of diet and weight, interpret the statements f(1800) = 155, f'(2000) = 0, and f-1(162) = 2200.
(b) What are the units of f'(c) = dW/dc?