Interval Notation Review

Front

What is interval notation?

Back

Interval notation is a mathematical notation used to represent a range of values on the number line, using parentheses and brackets to indicate whether endpoints are included or excluded.

Front

What does the bracket '[' signify in interval notation?

Back

The bracket '[' signifies that the endpoint is included in the interval.

Front

What does the parenthesis '(' signify in interval notation?

Back

The parenthesis '(' signifies that the endpoint is not included in the interval.

Front

How would you express the inequality 2 ≤ x ≤ 4 in interval notation?

Back

[2, 4]

Front

What is the interval notation for the inequality x < 8?

Back

(-∞, 8)

Front

Can you use the symbols '[' or ']' with infinity in interval notation?

Back

No, you cannot use '[' or ']' with infinity; you must use parentheses.

Front

What is the interval notation for the inequality -4 ≤ x < -1?

Back

[-4, -1)

Front

How do you express the inequality x > 6 in interval notation?

Back

(6, ∞)

Front

What is the interval notation for the inequality x ≤ -3?

Back

(-∞, -3]

Front

How would you write the inequality x < -2 or x > 3 in interval notation?

Back

(-∞, -2) ∪ (3, ∞)