Interval Notation and Inequalities

How is the inequality x < 3 represented in interval notation?

• (-∞, 3]

• (-∞, 3)

• [3, ∞)

• (3, ∞)

What is the interval notation for the inequality x ≥ 3?

• (-∞, 3)

• (3, ∞)

• [3, ∞)

• (-∞, 3]

What is the interval notation for the inequality X < 3?

• (3, ∞)

• [3, ∞)

• (-∞, 3)

• (-∞, 3]

How is the inequality X ≥ 3 represented in interval notation?

• (3, ∞)

• [3, ∞)

• (-∞, 3)

• (-∞, 3]

What is the interval notation for the inequality -2 ≤ X < 5?

• (-2, 5)

• [-2, 5]

• [-2, 5)

• (-2, 5]

What is the interval notation for the compound inequality X ≤ -2 or X > 5?

• (-∞, -2) U (5, ∞)

• [-2, 5)

• (-∞, -2] U (5, ∞)

• (-∞, -2] U [5, ∞)

In set notation, what does the vertical bar '|' typically represent?

• "and"

• "or"

• "such that"

• "is equal to"