Interval Notation

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

How is the interval notation for x ≤ 10 expressed?

Back

The interval notation for x ≤ 10 is expressed as (-∞, 10].

Front

Convert the inequality -1 < x < 4 into interval notation.

Back

The interval notation for -1 < x < 4 is (-1, 4).

Front

What inequality corresponds to the interval notation [2, 4]?

Back

The inequality corresponding to the interval notation [2, 4] is 2 ≤ x ≤ 4.

Front

How do you express the inequality a ≥ 11 in interval notation?

Back

The interval notation for a ≥ 11 is [11, ∞).

Front

What is the interval notation for x < 8?

Back

The interval notation for x < 8 is (-∞, 8).

Front

What do parentheses indicate in interval notation?

Back

Parentheses indicate that the endpoint is not included in the interval.

Front

What do brackets indicate in interval notation?

Back

Brackets indicate that the endpoint is included in the interval.

Front

How would you write the interval notation for the set of all real numbers?

Back

The interval notation for the set of all real numbers is (-∞, ∞).

Front

What is the interval notation for x > 3?

Back

The interval notation for x > 3 is (3, ∞).