The Point (0,0)is a Critical Point for the Function $f ( x , y ) = x ^ { 4 } + y ^ { 4 }$

question 13

Multiple Choice

The point (0,0) is a critical point for the function $f ( x , y ) = x ^ { 4 } + y ^ { 4 }$ .What kind of critical point is it?

• A)local minimum
• B)saddle point
• C)local maximum
• D)none of these

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