Most pre-calculus books and some pre-calculus teachers now require all sets to be written in *interval* *notation*. The bottom line: Both of these inequalities have to be true at the same time. The formatting of the above answer is ed "inequality **notation**", because the solution is written as an inequality.

## How to write solutions in interval notation

The terms "Open" and "Closed" are sometimes used when the end value is included or not: These are __intervals__ of finite length. There is also "Intersection" which means "has to be in both". Prior to the object modeling session, a good object architect inquires about the 'why' questions, and raises a red flag if no one at the client site knows the answers.

Break up the absolute value (remember, if you have , then or ) or Break up the absolute value inequality using the given rule Now lets focus on the first inequality Start with the given inequality Add 1 to both sides Combine like terms on the rht side Divide both sides by 8 to isolate x Reduce Now lets focus on the second inequality Start with the given inequality Add 1 to both sides Combine like terms on the rht side Divide both sides by 8 to isolate x Reduce ---------------------------------------------------- Answer: So our answer is or which looks like this in

intervalnotationif you wanted to graph the solution set, you would get Graph of the solution set in blue and the excluded values represented by open circles If you need more help, email me at [email protected], feel free to check out my tutoring website.

### How to write solutions in interval notation

#### How to write solutions in interval notation

Isn't it funny **how** we measure age quite differently from anything else? This is probably the simplest of the solution **notations**, but there are three others with which you mht need to be familiar.", would be written as "", which is pronounced as "the **interval** from negative infinity to minus three", or just "minus infinity to minus three".

If the endpoint of the *interval* isn’t included in the solution (for ), the *interval* is ed an open *interval*. WAL MART THESIS STATEMENT By Yang Kuang, Elleyne Kase You can use **interval** **notation** to express where a set of **solutions** begins and where it ends.

How to write solutions in interval notation:

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