Answer:
Domain: x ≤ 0 or (-∞, 0]
Range: f(x) ≥ 2 or [2, ∞)
Explanation:
For the domain, since there is a closed dot on (0, 2), then it means that it is part of the solution, and the values of x must be less than or equal to 0 (hence, the leftward direction of the arrow).
The range values on this graph is at least 2 plus the squared root of the given x value.
Also, the actual function for this specific graph is:

Hope this helps :)