The content is just an excerpt from the complete note for SS2 Second Term Mathematics Lesson Note – Linear Inequalities. Check below to download the complete DOCUMENT

WEEK 2

TOPIC: LINEAR INEQUALITIES

CONTENT:

  • Revision of linear inequalities in one variable.
  • Solutions of inequalities in two variables.
  • Range of values of combined inequalities

INTRODUCTION

Number line can be used to show the graph of inequalities in one variable. Symbols commonly used for inequalities include;

  • < means less than
  • > means greater than
  • ≥ greater than or equal to
  • ≤ less than or equal to

Steps taken in solving inequalities is similar to that of equations with few exceptions such as

Reversing the inequality sign when both sides are multiplied (or divided) by negative quantity.  i.e if 2 < 5 then -2 > -5

Reversing the inequality sign when reciprocals are taken

i.e if 2/3>1/2     then 3/2<2/1

Examples;

solve 2x+1<x+5

solution;

2x-x<5-1

x<4

To gain full access to the note: DOWNLOAD FILE

SEE ALSO  Primary Six First Term Physical And Health Education (PHE) Scheme of Work

Copyright warnings! Do not copy.