A graphing calculator is ded. Graph the polynomial in the given viewing rectangle. y = 2x3 - 3x2 - 12x - 27, [-5, 5] by [-50, 25] 20 20 -4 -2 2 -20 20 -40 20 20 -2 -2 2 4 -20 -20 -40 O Find the coordinates of all local extreme. State each answer rounded to two decimal places. (If an answer does not exist, enter DNE.) local minimum (x, y) = (0,0) local maximum ( x , y) = (0,0)