Algebra II Concepts
Grade 9•45 minutes•increasing and decreasing intervals from a graph
Learning Objective
I can use interval notation to represent the intervals where a function is increasing or decreasing, as shown on a graph.
Practice Questions
This lesson includes 12 practice questions to reinforce learning.
View questions preview
1. Explain the difference between an open interval and a closed interval. Give an example of each using a number line.
2. Represent the set of all real numbers greater than or equal to -5 using both an inequality and interval notation.
3. Represent the interval (-2, 7] on a number line. Explain whether -2 and 7 are included in the interval.
...and 9 more questions
Educational Video
Intervals and interval notation | Functions | Algebra I | Khan Academy
Khan Academy