Consider the equation below. (if an answer does not exist, enter dne.) f(x) = x3 − 12x2 − 27x + 3 (a) find the interval on which f is increasing. (enter your answer using interval notatio
For easy answers, I find a graphing calculator very helpful.
(a) f is increasing on (-∞, -1) and on (9, ∞). You may be expected to use the union of these two intervals to describe "the interval on which f is increasing":