The level surfaces of the functions $$g _ { 1 } ( x , y , z )$$ $$g _ { 2 } ( x , y , z )$$ and $$g _ { 3 } ( x , y , z )$$ are shown in below respectively. Which function is is decreasing in the positive z-direction?

Question

The level surfaces of the functions $$g _ { 1 } ( x , y , z )$$ $$g _ { 2 } ( x , y , z )$$ and $$g _ { 3 } ( x , y , z )$$ are shown in below respectively.    Which function is is decreasing in the positive z-direction?

Quizplus · Accepted Answer

The Answer of The level surfaces of the functions $$g _ { 1 } ( x , y , z )$$ $$g _ { 2 } ( x , y , z )$$ and $$g _ { 3 } ( x , y , z )$$ are shown in below respectively.    Which function is is decreasing in the positive z-direction?

The Level Surfaces of the Functions g1(x,y,z)g _ { 1 } ( x , y , z )g1​(x,y,z)

The Level Surfaces of the Functions $g _ { 1 } ( x , y , z )$