Answer:
A 4
Explanation:
the vertex form of a parabola is
y = a(x - h)² + k
with (h, k) being the vertex.
in our case
y = a(x - -5)² + -2 = a(x + 5)² - 2
we can calculate a by using the given point information.
the vertex itself does not help much, because it renders the x-term to 0.
so, we use the other given point (-4, 2) :
2 = a(-4 + 5)² - 2
4 = a(1)² = a