The vertex of this parabola is at (-2, -3) When the x-value is -1, the?

Y=a(x-h)+k is the vertex formula.

Since the vertex is at (-2,-3) this parabola has the

equation:

y=a(x+2)^2-3

We can plug in x=-1 but we really need to know a, to solve for y.

( we can solve it, but we will have an a in the solution)