3 points Identify the key features of the quadratic function graphed below. 6- K 8 - 7 -6 -5 -3 - 2 0 3 5 The x-intercepts are (-4, 0) and (2, 0) The y-intercept is (0, 8) The domain is (-infinity, 9] and the range is all real numbers V The axis of symmetry is X = 9 V and the vertex is (-1, 9)