Interval Notation help?

Question

5: Solve and write in interval notation: | -3x | + 2 ≤ 8
[-2, 10/3]
[-2, 2]
(-∞, -2] U [10/3, ∞)
(-∞, -2] U [2, ∞)


6: Solve and write in interval notation: 2 + | x/3 - 1 | > 6
(-9, 15)
(-3, 3)
(-∞, -3) U (3, ∞)
(-∞, -9) U (15, ∞)


7: Solve and write in interval notation: -1 + | 1/3 - x/2 | > -11/12
(-∞, 1/2) U (5/6, ∞)
(-1, 7/3)
(-∞, -1) U (7/3, ∞)
(1/2, 5/6)


8: Solve and write in interval notation: | 3 - x | > 7
(-∞, ∞)
(-4, 10)
(-∞, -4) U (4, ∞)
(-∞, -4) U (10, ∞)

Answer 1

Are you kidding?