Question

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

Answer 1

`(-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.