Consider the following. f(x) = x5 - 4x3 + x - 1 Find f' (x) . f' ( x ) = Compare the graphs of f and f' and use them to explain why your answer is reasonable. f'(x) = 0 when f ---Select--- f'(x) is positive when f ---Select--- f'(x) is negative when f ---Select-- V Need Help? Read It