Domain is the most possible x values in a graph.
In this problem, the minimum domain is 0 to infinity because the line goes on and on. You write it like this [0, ∞).
You write it like that because [ means greater than or equal to.
The range is the most possible y values on a graph.
In this problem the minimum domain is 1 and the maximum domain is infinity.
[1, ∞)
