Answer:
1. D
2. C
3. B
4. A
Explanation:
1. x< -1 Open circle at -1 line goes to the left D
2. x≥ -1 Closed circle at -1 ( because of the equals sign) line goes to the right C
3. x ≤ -1 Closed circle at -1 ( because of the equals sign) line goes to the left B
4. x > -1 open circle at -1 lines goes to the right A