Find the absolute extrema of the function (if any exist) on each interval. (If an answer does not exist, enter DNE.)f(x) = 3x - 6(a) [0, 3]minimum (x,y)=maximum (x,y)=(b) [0, 3)minimum (x,y)=maximum (x,y)=(c) (0, 3]minimum (x,y)=maximum (x,y)=(d) (0, 3)minimum (x, y) =maximum (x, y) =