The domain of the function is the values of x
As shown in the graph:
The function starts from x = - 4 (open circle) , to x = 3 ( open circle )
So, the domain of the graph = ( -4 , 3 )
Note : there is a point in between the starting and the end of the graph, in which the definition of the function changed, but this point is closed circle,
so, it will be contained in the domain
The final answer is : domain = (-4 , 3)