Question

sketch the graph of the following of g(x,y)=(9-x^2-y^2)^1/2 .

Answer 1

it's not an easy question. First, do you need the real and the imaginary parts of this function?

Answer 2

if it's only real, the notice that g(x,y) values are constant on the circle on xy plane centered at (0,0) and with radius 3.