# Keyword Analysis & Research: interval notation practice

## Keyword Research: People who searched interval notation practice also searched

How do you write an interval notation?

In "Interval Notation" we just write the beginning and ending numbers of the interval, and use: [ ] a square bracket when we want to include the end value, or. ( ) a round bracket when we don't.

How to write interval notation?

Write interval notation using a beginning bracket or parenthesis and an ending bracket or parenthesis. Next, write the beginning number of the set followed by a comma and the ending number of the set. Brackets indicate that the set includes the beginning and/or ending number.

What is an example of interval notation?

Interval notation is a way of writing subsets of the real number line . A closed interval is one that includes its endpoints: for example, the set { x | − 3 ≤ x ≤ 1 } . To write this interval in interval notation, we use closed brackets [ ]: [ − 3 , 1 ] An open interval is one that does not include its endpoints, for example, { x | − 3 < x < 1 } .

How to find interval notation?

The easiest way to find interval notation is to first draw a graph on a number line as a visual representation of what's going on in the interval. If the endpoint of the interval isn't included in the solution (for < or >), the interval is called an open interval.