The function f(x) = x2 + 4x - 5 represents a parabola. Part A: Rewrite the function by completing the square. Show ALL your work. (6 points) Part B: Determine the vertex (+1 point) and explain how you know it is either the maximum or the minimum value (+1 point). Part C: Determine the axis of symmetry for f(t). (2 points) Bonus 1: Calculate the discriminant for f(x) and state what it means. (+2 points)