Respuesta :

Answer:

a = .5

h= -2

k = -4

Step-by-step explanation:

h(x) = 0.5(x+2)²-4

The vertex form of a parabola is written as

y = a(x-h)²+k

Where (h,k) is the vertex

h(x) = 0.5(x- -2)²-4

a = .5

h= -2

k = -4