Answer:
- D
- B
- A
- C
Step-by-step explanation:
A curved bracket ( ) corresponds to a < symbol. A square bracket [ ] corresponds to a ≤ symbol. The square bracket signifies that the point is included in the interval. The curved bracket indicates the point is not included in the interval.
The interval a,b means a is the lower end of the interval and b is the upper end. The values of the variable lie between. So, for example, (a, b] means ...
a < x ≤ b
- [3, 5) ⇒ 3 ≤ x < 5 . . . matches D
- (3, 5) ⇒ 3 < x < 5 . . . matches B
- (3, 5] ⇒ 3 < x ≤ 5 . . . matches A
- [3, 5] ⇒ 3 ≤ x ≤ 5 . . . matches C
