Answer:
or [2, 8]
Explanation:
The domain of a function is the x values for which a function is defined.
In our case, the function is defined between the points (2, 3) and (8, 9), meaning between x = 2 and x = 8.
The points are included in the domain, therefore we can write the domain in two ways:
1. As an inequality:

2. Using interval notation: [2, 8]