q.1 Only D, the graph please!

x+3y5x9.5y3.5x,y0andinteger (a) On the following page, use the graphical solution method to id ntify the feasible points. (Use the scale 1 by 1 for each small square so tha, you can visually detect the feasible integer solutions.) (b) Find the extreme points of the convex hull and calculate taeir objective values. Extreme point 1: Extreme point 2: Extreme point 3 : Extreme point 4: Extreme point 5: Extreme point 6 : (c) Draw an isocost line that passes through the point (x=5,y=0) and find the c i.ec ion of optimization. (d) Provide the optimal solution and optimal objective function value. Optimal solution: x= y= Optimal objective value