# How do you solve and write the following in interval notation: #x>=12# or # x<-4#?

##### 1 Answer

#### Explanation:

Lets take your question as an example.

We have

This means the value of

So the interval notation for this will be

Here, this [ ] bracket means its a closed interval. This means

( ) bracket means an open interval,

So when we write

Similarly

It can be written as

Its an open interval on both sides because