How do you solve and write the following in interval notation: x > -2?

1 Answer
Jul 28, 2016

(-2,infty)

Explanation:

First, begin by noticing that x> -2 means that you want all the points greater than -2. Thus, you don't want the actual point -2. So that's why we use the ( bracket rather than the [ bracket.
The first one means that we are excluding the number from our list of points.
Now, since every number greater than -2 is on our interval, we put infty to the right.
The reason we also use the ) bracket, is because technically infinity is not a real number.