Determine the equation of the parabola.
vertex -2, -3
Vertex form of parabola: y = a (x-h)2 + k
y = a (x+2 )^2 - 3 Now look at x = -4 the function needs to be = -1
x^2+4x+4 - 3 = -1
a(16 - 16 + 4) - 3 = -1
4a = 2
a = 1/2
y = 1/2 (x+2)2 -3
+36915 
