27-29 need help asap

27. The second derivative of the function f(x) is given by f"(x) = x(x - a)(x -b)2. The graph of f "(x) is shown below. y =f"(x) m Find all values of x, for which the graph of f(x) has an inflection point. a) 0 and a b) 0 and m c) bandj d) 0, a, and b e) b, j, and, k 28. The function f(x) is continuous for -3