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

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Answer 1 · 2018-05-30T12:55:31

Below

$y=x^2-4$

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]}

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