Question

describe the domain of the function f(x,y)=√(y-x2).

Answer 1

\[\sqrt{y-x ^{2}}\]

Answer 2

What's under the radical cannot be negative. So, y - x^2 must be greater than or equal to 0. All points (x, y) that satisfy this requirement are in the domain of f(x, y).

Answer 3

So basically a good answer is that the domain of the function is:
\[y \ge x^2\]

Answer 4

thank you