If we say that f x y 9x 2 y 2 make a drawing of the level

Last updated: 1/23/2023

If we say that f x y 9x 2 y 2 make a drawing of the level curves of f for the values c 0 1 9 also drawing for the sections of the graph of f in the plane x 1 x 0 x 1 y 1 y 0 y 1 and draw the graph of f