## What Is a Function?

In algebra, the topic of functions is extremely important. But what is a function? In this module students will learn what a function is and how to represent it. They'll explore data tables, graphs, and equations. Plus, they'll see the connection from one to the other.

Students will learn about function machines, and we draw an analogy to actual machines. A short video shows how a flat disk of aluminum (the input) is turned into a soda can (the output) by a series of machines that stretch and shape the disk into the can.

#### Math Concepts

- Functions
- Graphing Numbers

#### Learning Objectives

- Defining a function
- Graphing a function
- Using the vertical line test

#### Prerequisite Skills

- Organizing data in tables
- Graphing data from tables

Common Core Standards | CCSS.MATH.CONTENT.8.F.A.1, CCSS.MATH.CONTENT.8.F.B.5 |
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Lesson Duration | 20 mins |

Grade Range | 8th - 10th Grade |