Preface - This problem relates to the model of the cost of packaging. The conclusion drawn from (1) - that costs per ounce for larger packages are less holds for the data gien at the end of this problem, but this is a relatively crude result. Moreover, the rule on doubling the size of a package cannot usually be checked , since manufactureres tend to package products in odd sizes. We want a more flexible form of the doubling rule, and so we shall derive a finite difference analog. Solve (a) and (b) from photo.

packaged product and c1, 2, and C3 the costs per ounce of a packaged product. Derive the following result. (a) Let wi