Ok so u were close but the answer is actually C and here's why:
The vertex of the parabola is ( -4 , -6 ) And you can tell this since the equation is in vertex form y = a(x - h)^2 + k
Remember axis of symmetry cuts the parabola down the middle meaning it goes through the x axis. x = -4
Picture for support:
The vertex of the parabola is ( -4 , -6 ) And you can tell this since the equation is in vertex form y = a(x - h)^2 + k
Remember axis of symmetry cuts the parabola down the middle meaning it goes through the x axis. x = -4
Picture for support: