Find the vertex of this parabola:
y = -x2 - 4x - 2

In order to find the vertex of a parabola, we use the following formula:

Remember, a parabola looks like so:

Now we know what a and b stand for.

In this case, b is -4, and a is -1:

Simplify:

Divide:

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3