Multiple Choice
Find the extreme values of the function subject to the given constraint.
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A) Maximum: 400 at (20, 20) ; minimum: -400 at (-20, -20)
B) Maximum: 400 at (20, 20) and (-20, -20) ; minimum: -400 at (20, -20) and (-20, 20)
C) Maximum: 400 at (20, -20) and (-20, 20) ; minimum: -400 at (20, 20) and (-20, -20)
D) Maximum: 400 at (20, 20) ; minimum: 0 at (0, 0)
Correct Answer:

Verified
Correct Answer:
Verified
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