Question

How do you graph `y=x^2-4`?

Answer 1

Below

Explanation:

`y=x^2-4`

You will notice straight away that since the `x` is to the power of 2, then it must be a parabola.

A `y=x^2` looks like the graph below

graph{x^2 [-10, 10, -5, 5]}

Now, since the equation has a `-4` attached to it, then all you have to do is to shift your parabola down by 4 units.

Like below:

graph{x^2-4 [-10, 10, -5, 5]}