Answer:
vertex = (- 2, - 4 )
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
y = (x + 2)² - 4 ← is in vertex form
with (h, k ) = (- 2, - 4 ) ← vertex
