Answer: A. (0, 1) and D. (2, ∞)
Explanation:
When looking at the line from left to right we see the y-values as follows:
- y-values are increasing from -∞ to 0
- y-values are decreasing from 0 to 1
- y-values are increasing from 1 to 2
- y-values are decreasing from 2 to ∞
So, the y-values are decreasing on the interval from 0 to 1 (0, 1) and the interval from 2 to infinity (2, ∞).