Hello, lilmolldoll41!
I had to babytalk my way through this one.
. . I hope it makes sense . . .
How do you graph: .$\displaystyle y  x \:=\:2$ ?
We have: .$\displaystyle y \:=\:x + 2$
First, we consider: .$\displaystyle y \:=\:x + 2$
The graph of $\displaystyle y \:= \:x$ is a Vshape with its vertex at the origin.
The graph of $\displaystyle y \:=\:x + 2$ is the same graph moved up 2 units. Code:

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Now $\displaystyle y$ makes the graph symmetric to the xaxis.
. . (Whatever happens above the xaxis also happens below.)
So the "V" is reflected downward and the graph looks like this: Code:

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