1: Write in interval notation: | x | ≤ 3
(-∞, -3] U [3, ∞)
(-∞, ∞)
[-3, 3]
No solution
2: Write in interval notation: | x | ≥ 4
(-∞, -4] U [4, ∞)
No solution
[-4, 4]
(-∞, ∞)
3: Solve and write in interval notation: | 4x | > -12
(-∞, -3) U (3, ∞)
No solution
(-3, 3)
(-∞, ∞)
4: Solve and write in interval notation: | x – 3 | < 9
(-∞, -6) U (12, ∞)
(-∞, ∞)
(-∞, -9) U (9, ∞)
(-6, 12)
5: Solve and write in interval notation: | 3x – 2 | ≥ 4
(-∞, -2] U [2/3, ∞)
(-∞, -2/3] U [2, ∞)
(-∞, -2] U [6, ∞)
[-2/3, 2]
2007-03-02
01:16:53
·
2 answers
·
asked by
me1026
1
in
Mathematics