what is the domain of h?

what is the domain of h?
Answer
Explanation:
Step1: Recall domain definition
The domain of a function is the set of all possible x - values.
Step2: Identify x - values from graph
From the graph of the function (h), the x - values of the points are the elements of the domain. The x - values of the points are (x=- 2,0,5,6).
Answer:
({-2,0,5,6})