Chapter 3: Functions

“Coronavirus. SARS-CoV-2” by Alexey Solodovnikiv is licensed under CC BY-SA 4.0.
“Covid-19 new cases in top 5 countries and the world” by Chris55 is licensed under CC BY-SA 4.0.

Chapter Outline

3.1 Functions and Function Notation
3.2 Domain and Range
3.3 Rates of Change and Behavior of Graphs
3.4 Composition of Functions
3.5 Transformation of Functions
3.6 Absolute Value Functions
3.7 Inverse Functions

The COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), began with an outbreak of COVID-19 in Wuhan, China, in December 2019. The graph above tracks the number of cases in 2022 for different countries and the whole world.

Notice, as we consider this example, that there is a definite relationship between week and the number of cases. For any week we choose, we can determine the corresponding number of cases. In this chapter, we will explore these kinds of relationships and their properties.

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CCA College Algebra Copyright © by Alexandre Probst; Collier Gaiser; Jason Ray; Radha Basker; and Shari Holder is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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