## College Algebra (10th Edition)

The function $f$ is decreasing on the following intervals: $(-10, -8)$; $(-2, 0)$; and $(2, 5)$
The graph shows that the function $f$ is decreasing in the following intervals: $(-10, -8)$; $(-2, 0)$; and $(2, 5)$ After all, these are the intervals for which the function is going downward from left to right.