## Unit 3: Introduction to Functions

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### Overview

*Before 8 ^{th} grade you may remember working with an input-output table. In 8th grade, you will begin to call relationships between inputs and outputs functions. The big idea is that a function uses a rule where each input is assigned to exactly one output. You will learn how to identify and compare functions in different forms, such as a table, graph, equation or a verbal description. You will also be able to tell the difference between linear and non-linear functions in the different forms and recognize the equation y = mx + b as a representation of a linear function. *

**Developed By:** *Myrtle Holland & Jessica Theys*

## Pre-Unit Assessment

## Lesson 1

Are We Relations?—Function Warmup

## Lesson 2

Am I a Function?

## Lesson 3

How Do We Compare?

## Lesson 4

Functions—Linear, Nonlinear, or Not?