The function $f ( x , y ) = x ^ { 3 } - 3 x + y ^ { 2 } - 6 y$ has a saddle point at (-1, 12).Which of the following is a sketch of the level curves of f near this point?

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The Answer of The function $f ( x , y ) = x ^ { 3 } - 3 x + y ^ { 2 } - 6 y$ has a saddle point at (-1, 12).Which of the following is a sketch of the level curves of f near this point?

The Function f(x,y)=x3−3x+y2−6yf ( x , y ) = x ^ { 3 } - 3 x + y ^ { 2 } - 6 yf(x,y)=x3−3x+y2−6y

The Function $f ( x , y ) = x ^ { 3 } - 3 x + y ^ { 2 } - 6 y$