Since f (x) = p (x - q) (x - r). Part of the graph of f is shown below. 4 The graph passes through the points (-2, 0), (0, -4), and (4, 0). (a) Write down the value of g and r. (2) 4/4 -2 (b) Write down the equation of the axis of symmetry. (1) (c) Find the value of p. (2) (Total 5 points)