## Precalculus (6th Edition) Blitzer

(a) is increasing on the interval $(0, +\infty)$ (b) has no interval where it is decreasing (c) has no interval where it is constant
Based on its graph, the given function: (a) is increasing on the interval $(0, +\infty)$ (b) has no interval where the function is decreasing (c) has no interval where it is constant