[-/1 Points] DETAILS 0/6 Submissions Used Find the absolute maximum and minimum y-values of f(x) = 2x (1 + 12x2)2 on the interval [-2, 12], as well as the x-value(s) where they occur. If an answer does not exist, enter DNE. Round your answers to four decimal places. To help solve this, the first derivative is f ' (x) = 2 (1 - 36x2) (1 + 12x2) 3 (a) Absolute maximum of y = occurs at x = (b) Absolute minimum of y = occurs at x =