Functions
Understand what a function is, use function notation, identify domain and range, explore linear functions and slope, write linear functions from multiple representations, compare functions, and connect arithmetic sequences to linear functions.
Estimated Time
30–40 minutes
Difficulty
Easy
Overview
Unit description, learning objectives, and skills.
Unit 3 — Functions introduces one of the most important ideas in mathematics. You will learn what makes a relation a function, use function notation, identify domain and range, and explore linear functions, slope, and rate of change through graphs and real-world contexts.
Learning Objectives
By the end of this unit, you will be able to:
Skills You Will Master
Real-World Connection
Functions are everywhere. When a streaming service recommends a show based on your watch history, it is using a function. When a GPS calculates your arrival time based on distance and speed, that is a function. Businesses use functions to model revenue, scientists use them to track population growth, and engineers use them to design bridges. Understanding functions — and especially linear functions — gives you the mathematical lens to describe, predict, and analyze the world around you.
Chapter Checklist
Recommended steps for completing each chapter
- Read the Workbook
- Complete the Independent Study
- Finish the Exit Ticket
- Take the Quiz
- Review the Answer Key
- Continue to the Next Chapter