# How do you solve and write the following in interval notation: y is at least 5?

##### 1 Answer

Jun 30, 2016

#### Answer:

Range:

#### Explanation:

**FYI (general knowledge)**

We are talking about the y-values, so we are dealing with the range.

*Remember:*

*but* the one noted inside the parentheses

For example:

Here, the variable

**FOR YOUR QUESTION**

So for all

Use a bracket since it is **at least**:

and since it is not specified that there is a limit number, we finish with infinity:

**Note that whenever #oo# is used in interval notation, it must be parentheses that close up the notation.**