Answer: 6 ≥ x ≥ 0
Explanation:
The domain of a function is all of the inputs for the function also known as the x-values of a graph.
We are looking at the x-values of where the function is increasing. This is between 0 and what looks to be 6. We can write this in a few different ways, but I will use inequality notation.
6 ≥ x ≥ 0