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InequalitiesIN

Identify interval notation for inequalities

QuestionAnswer
Identify the interval notation for x ≥ 2 [2,∞)
Solve x + 3 < 0 and identify the interval notation x < –3 and interval notation (-∞,-3)
Solve x - 4 ≥ 0 and identify the interval notation x ≥ 4 and interval notation [4, ∞)
Solve x -7 < -3 and identify the interval notation x < 4 and interval notation (-∞ , 4)
Solve x + 10 ≥ 5 and identify the interval notation x ≥ -5 and interval notation [-5,∞)
Solve -3x - 3 < 6 and identify the interval notation x > -3 and interval notation (-3, ∞) * don't forget to switch the inequality because you divide by a negative number
Solve for 3x + 2 < 14 and 2x – 5 > –11 and write the interval notation x > -3 and x < 4 interval notation (-3,4)
Solve for x: 2x + 7 < –11 or –3x – 2 < 13 and write the interval notation x < -9 or x > -5 interval notation (-∞,-9) u (-5,∞)
Solve for x: 3x − 7 ≥ 20 x ≥ 9 interval notation [9,∞)
Created by: algebra2teacher