Identify the intervals in which f(x) > 0 and the intervals in which f(x) < 0. Identify the intervals in which f(x) is increasing and the intervals ...

Identify the intervals in which f(x) > 0 and the intervals in which f(x) < 0. Identify the intervals in which f(x) is increasing and the intervals in which it is decreasing. Qualify the growth and decrease of f(x), indicating whether they occur at increasing or decreasing rates.
Identify the intervals in which f(x) > 0 and the intervals in which f(x) < 0.
Identify the intervals in which f(x) is increasing and the intervals in which it is decreasing.
Qualify the growth and decrease of f(x), indicating whether they occur at increasing or decreasing rates.

a) This is not a test question.
b) The intervals in which f(x) is increasing are (-∞,-1) U (5,∞) and the interval in which f(x) is decreasing is (-1,5).
c) The growth of f(x) occurs at decreasing rates and the decrease of f(x) occurs at increasing rates.