### Introduction

An inequality is an expression involving one of the symbols $\ge ,\le ,>$ or $<$ . This Section will first show how to manipulate inequalities correctly. Then algebraical and graphical methods of solving inequalities will be described.

#### Prerequisites

- be able to solve linear and quadratic equations

#### Learning Outcomes

- re-arrange expressions involving inequalities
- solve linear and quadratic inequalities

#### Contents

1 The inequality symbols2 Solving linear inequalities algebraically

3 Solving inequalities using graphs