Question

determine the domain of the following graph:

Explanation:

Step1: Identify leftmost x-value

The graph starts at a closed dot at $x=-1$.

Step2: Identify rightmost x-value

The graph ends at a closed dot at $x=8$.

Step3: Define domain interval

The domain includes all x-values between -1 and 8, inclusive, since both endpoints are closed dots.

Answer:

$-1 \leq x \leq 8$ (or in interval notation: $[-1, 8]$)