Recall that the domain of a relation or a function is the set of all possible values for an input in that function. Also, the range is the set of all possible output values.
Hence, the domain is the set of all x-values over the graph and the range is the set of all possible y-values over the graph.
From the graph, notice that the set of x-values runs from -∞ to -2 (not inclusive) and then from -2 (not inclusive) to ∞. Hence the domain of the function is:
Note that an open parentheses is used at -2 because it is not i