Answer
Domain: $[-3,3]$
Range: $[0,3]$
Work Step by Step
The expression under the square root must be greater than or equal to zero:
$9-x^2\geq0$
$x^2\leq9$
$-3\leq x\leq3$
So the domain is $[-3,3]$
The minimum value of the function is 0 and the maximum value is 3
So the range is $[0,3]$
