Question

Find the vertex of the parabola whose equation is y = x2 + 6x + 2.

Answer 1

first coordinate of the vertex is always \(-\frac{b}{2a}\) which in your case is \(-\frac{6}{2}=-3\)

Answer 2

second coordinate of the vertex is what you get for \(y\) when you replace \(x\) by \(-3\)