Answer:
Step-by-step explanation:
Let x and y represent the quantities of feed type I and feed type II, respectively.
Constraints
 5x +4y ≥ 10 . . . protein requirements
 3x +4y ≥ 8 . . . . fat requirements
 x ≥ 0, y ≥ 0 . . . can't have negative quantities
Objective Function
 Minimize 5x +3y
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The graph shows the solution to be ...
 2.5 bags of Feed Type II will fill the need at minimum cost.