Answer:
Step-by-step explanation:
y = a(x - p)^2 + q....the graph of the parabola represented by this quadratic function has an axis of symmetry represented by the equation x = p.
f(x) = (x + 3)^2 - 4.....the axis of symmetry is in the p position of the formula used above.....so the axis of symmetry is -3, therefore, ur equation is x = -3
but before u do anything, u have to make sure ur quadratic equation is in vertex form...in the form of y = a(x - p)^2 + q