#### Answer

Domain:
$[-2, 6]$
Range:
$[-2, 6]$

#### Work Step by Step

Some important observations about the graph:
(i) The lowest point is at $(6, -2)$.
(ii) The highest point is at $(-2, 6)$.
(iii) The graph is decreasing from left to right.
The domain is the set that contains all the x-values of a function.
The x-values included in the given function vary from $-2$ to $6$.
Thus, the domain of the given function is $[-2, 6]$.
The range of a function is the set of y-values.
Notice that the y-values included in the graph of the function vary from $-2$ to $6$.
Thus, the range of the function is $[-2, 6]$.