# Question: Reconsider the first quadratic programming variation of the Wyndor Glass

Reconsider the first quadratic programming variation of the Wyndor Glass Co. problem presented in Sec. 13.2 (see Fig. 13.6). Analyze this problem by following the instructions of parts (a), (b), and (c) of Prob. 13.7-4.

## Relevant Questions

Reconsider Prob. 13.1-4 and its quadratic programming model. (a) Display this model [including the values of R(x) and V(x)] on an Excel spreadsheet. (b) Use Solver (or ASPE) and its GRG Nonlinear solving method to solve this ...For each of the following functions, show whether it is convex, concave, or neither. (a) f (x) = 10x – x2 (b) f (x) = x4 + 6x2 + 12x (c) f (x) = 2x3 – 3x2 (d) f (x) = x4 + x2 (e) f (x) = x3 + x4 Reconsider the integer nonlinear programming model given in Prob. 11.3-9. (a) Show that the objective function is not concave. (b) Formulate an equivalent pure binary integer linear programming model for this problem as ...Consider the following linearly constrained convex programming problem: Maximize f(x) = 3x1 x2 + 40x1 + 30x2 – 4x21 – x41 – 3x22 – x42, Subject to 4x1 + 3x2 ≤ 12 x1 + 2x2 ≤ 4 and x1 ≥ 0, x2 ≥ 0. Consider the following convex programming problem: Maximize f (x) = x1x2 – x1 – x12 – x2 – x22, subject to x2 ≥ 0.Post your question