Question

Which of the following is the vertex of the quadratic equation y = –4(x + 6)2 + 2?

Answer 1

the vertex form of a parabola is

\[y = a(x - h)^2 + k\]

the vertex is (h, k) and the focal length is a.

match your equation with the general form(above) to get the vertex.

Answer 2

thank you