Question. Consider the following linear programming problem: max z = x+7y s.t. 2x+3y=9 x +5y = 10 x20, 1 20 (1). Write down the dual problem of the maximization problem above. (2). Use the simplex method to solve for x and y. Show necessary steps for full credit.QUESTION 13 Consider implicit function y + x2y -6 = 0. The derivative dy/dx = OA. 3v2+ x2 2xy O B. 312 + x2 2xy OC. 2xy 312 + x2 O D. 2xy 3y2 + x2