How to Identify Increasing and Decreasing Intervals on Graphs

Miacademy & MiaPrep Learning Channel

This educational video provides a clear and structured guide to understanding increasing and decreasing intervals on function graphs. The narrator begins by connecting these concepts to the familiar idea of slope, explaining that an increasing interval corresponds to a positive slope and a decreasing interval to a negative slope. The video also introduces "interval notation," a critical mathematical syntax used to describe specific sections of a domain, explaining the difference between parentheses (exclusive) and square brackets (inclusive), as well as the use of infinity.