Which polynomial function could be represented by the graph below? On a coordinate plane, a parabola opens up. It goes through (negative 2, 0), has a vertex at (negative 0.5, negative 4.5), and goes through (1, 0). f(x) = x2 + x – 2 f(x) = 2x2 + 2x – 4 f(x) = x2 – x – 2 f(x) = 2x2 –2x – 4