Describe the shape of the graph of $f ( x , y ) = 3 x ^ { 2 } + 3 y ^ { 2 } - 3 x - 12 y + 18$
A)Paraboloid
B)Elliptic paraboloid
C)Hyperbolic paraboloid
D)None of the above

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The Answer of Describe the shape of the graph of $f ( x , y ) = 3 x ^ { 2 } + 3 y ^ { 2 } - 3 x - 12 y + 18$
A)Paraboloid
B)Elliptic paraboloid
C)Hyperbolic paraboloid
D)None of the above

Describe the Shape of the Graph Of f(x,y)=3x2+3y2−3x−12y+18f ( x , y ) = 3 x ^ { 2 } + 3 y ^ { 2 } - 3 x - 12 y + 18f(x,y)=3x2+3y2−3x−12y+18

Describe the Shape of the Graph Of $f ( x , y ) = 3 x ^ { 2 } + 3 y ^ { 2 } - 3 x - 12 y + 18$