Question

How do you graph the inequality `y> -1` and `x>=4`?

Answer 1

Let's start with `y > -1`. This is saying `y` is larger than `-1`. So the range goes from `-1` to infinity, or `(-1, oo)`:

graph{y > -1}

Note that `-1` is not included. That's what the dotted line means.

`x >= 4` tells us that `x` is greater than or equal to `4`

So the domain is from `4` to `oo`, or `[4, oo)`, with a solid line:

graph{x >= 4}

I'm not sure if this is what you are asking, but if you put these two together you get this, where the purple area is the solution: