The graph of y = f ′(x) is shown below. List the intervals where the graph of f is decreasing.
Graph consists of 3 line segments from x equals negative 4 to x equals 4. Graph is decreasing from x equals negative 4 to x equals negative 2, increases from x equals negative 2 to x equals 2 and decreases from x equals 2 to x equals 4. There are x intercepts at x equals negative 4, 0 and 4.
(–4, –2)
(–2, 2)
(–4, 0)
(0, 4)