Find the minimum value of the objective function and where it occurs, subject to the constraints:
?
Objective function:
?
z = 8x + y
?
Constraints:
?
         x ? 0
         y ? 0
 x + 4y ? 20
   x + y ? 18
?2x + 2y ? 21
?

A. Minimum at (0, 0): 0
B. Minimum at (5, 0): 40
C. Minimum at : 84
D. Minimum at (18, 0): 144
E. No minimum


Answer: A

Mathematics

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