Lesson: Increasing and Decreasing Intervals of a Function Mathematics • Second Year of Secondary School

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In this lesson, we will learn how to find the intervals over which a function is increasing, constant, or decreasing.

Students will be able to

recall the condition for a function to be increasing, decreasing, or constant over the interval ,
identify the increasing and decreasing intervals of a simple function from its equation,
identify the increasing and decreasing intervals of a function from its graph,
give conditions for which a given equation is increasing or decreasing.