On a coordinate plane, a parabola opens up. it goes through (negative 3, 0), has a vertex at (negative 1, negative 11), and goes through (1, 0). what is the range of the function f(x) = 3x2 + 6x – 8? {y|y ≥ –1} {y|y ≤ –1} {y|y ≥ –11} {y|y ≤ –11}