Answer:
A. x ≤ 5
Step-by-step explanation:
We know that finding the domain consists of finding where the function has an x value, so that rules out answer choice B which uses y, that gives the range.
Since the graph cuts off at a point (x = 5), We can confer that the domain is not all real numbers, so that eliminates D.
Now when you look at the graph, you can see that at x = 5, the x values start becoming smaller, so that rules out answer choice C which states that the x values at 5 start to get larger.
The answer is A because it includes x = 5, and the x values of the graph progressively get smaller.
