06. Increasing behavior and the first derivative Practice Quiz

Read derivative signs over valid domain intervals and use sign changes to classify local extrema. Requires critical numbers and the mean value theorem. Connect factored derivatives, rate graphs, and nearby function behavior without finding antiderivatives.

Cover: “Extrema example” by KSmrq, Wikimedia Commons, https://commons.wikimedia.org/wiki/File:Extrema_example.svg, CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0/). Rasterized and fitted to a white canvas; adapted image remains CC BY-SA 3.0.