Find any relative maxima and relative minima. (If an answer does not exist, enter DNE.) y= 4+20x-3x relative maximum (x, y) = relative minimum (x, y) = Find any points of inflection. (Order your answers from smallest to largest x, then from smallest to largest y. If an answer does not exist, enter DNE.) smaller x-value (x, y) = (x, y) = larger x-value (x,y)