# Graphs

## `x` and `y` axis

The `x` axis is the horizontal axis and the `y` axis is the vertical axis.

Would you feel safer balancing the egg on the `x` or the `y`? We think you would prefer balancing the egg on X's horizontal expanse.

And

X is a cross, so the `x` axis is across.

`x` is a cross, so the `x` axis is across. Therefore, the `y` axis is vertical.

**Example 1**

All graphs have an `x` axis and a `y` axis.

**Example 2**

Both the `x` axis and `y` axis of a graph may also show negative values, as in the one above.