Answer:
Option (C) x ≥ 0
Explanation:
The domain of a graph is the set of all possible input values for the graph. The steps to find the domain of a graph:
Find the horizontal extent of the graph (i.e. how much graph extends on x-axis), example, here in the graph given, the horizontal extent is from x = 0 to x >10. It takes all the values for x≥0. (option C is correct)
Hence, the domain is x ≥ 0 (also showed it in the attached diagram)