Each row of the table has equivalent expressions. Complete the following table and questions.
Example | Inequality notation | Set notation | Interval notation |
---|---|---|---|
#1 | -1 ≤ x < 10 | { x | -1 ≤ x < 10} | [-1, 10) |
#2 | x ≤ 5 or x > 1 | { x | x > 1 or x ≤ 5} | (-∞, -5] ∪ (1, ∞) |
#3 | x ≥ -5 | ||
#4 | (-∞, 3) ∪ (3, ∞) | ||
#5 | { x | x < 1 and x > -1 } |
What do the parentheses () mean for intervals?
What do the brackets [] mean for intervals?
What does the "sideways eight" mean?
What does the ∪ symbol mean?