Find All the Local Maxima, Local Minima, and Saddle Points $$f ( x , y ) = 2 - x ^ { 4 } y ^ { 4 }$$

question 269

Multiple Choice

Find all the local maxima, local minima, and saddle points of the function.
- $$f ( x , y ) = 2 - x ^ { 4 } y ^ { 4 }$$

• A) f(2, 0) = 2, saddle point; f(0, 2) = 2, saddle point
• B) f(0, 0) = 2, local maximum; f(2, 2) = -254, local minimum
• C) f(2, 2) = -254, local minimum
• D) f(0, 0) = 2, local maximum

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