The following figure shows the graph of y = f(x). Give the signs of the first and second derivatives. Each derivative is either positive everywhere, negative everywhere or zero everywhere. y = f(x) O f' (x) is positive; f"(x) is zero. O f' (x) is negative; f" (x) is negative. O f' (x) is positive; f"(x) is negative. O f'(x) is zero; f" (x) is positive. O f'(x) is positive; f" (x) is positive