[11.1] - Reading Assignment

After reading section 11.1...

1. Why is the domain of the function in Example 4, $g(x, y) = -9 − x^2 − y^2$, shaped like a disk?
2. If $f$ is a function of two variables and $f (3, −4) = −1$, give the coordinates of a point on the graph of $f$.
3. Muddy questions? Questions you wonder about?