Use the graph of f '(x) below to find the x values of the relative maximum on the graph of f(x):

Iassume that f' is defined for all real numbers and it's not just defined for the interval shown in the graph.a relative maximum occurs at critical points where f' changes from positive to negative.we are given the graph of f' which is a sinusoidal function with a period of 2. this means if we add the period to a number to be evaluated, we'll get the same thing.we see at x = 1, the graph of f' changes from positive to negative.therefore, the x-values of the relative maxima are    x = 1 + 2n, where n is an integerwe add on 2n as the period is 2.