題組內容

6. Suppose that f(x) is continuous on [0,6] and f(0) = f(4) = 0. The graph of f'(x) is given as below, but values of f'(1), f"(2) and f'(4) are not determined. It is known that

(d) Sketch the graph of f(x) for x ∈ [0, 6].