What is the vertex of the graph of the function f (x) = x2 + 8x - 2?

The vertex is at (-4, - 18).

Step-by-step explanation:

f (x) = x^2 + 8x - 2

Covert to vertex form:

f (x) = (x + 4) ^2 - 16 - 2

f (x) = (x + 4) ^2 - 18.

So the vertex is at

(-4, - 18).