Inequalities Introduction

Inequalities

The prefix 'in' is a Latin term meaning ______

Equations have a single solution: 3x = 6; x =?; inequalities have a range of solutions

There is a problem with these signs seen outside of different bars. What is wrong with these signs?

Inequalities

What the signs should

say is:

Which inequality sign would

be used for this sign?

Inequalities from Graphs

Write the inequality for each graph shown:

Inequalities from Graphs

Write the inequality for each graph shown:

Inequalities from Graphs

Inequalities & Equations

​The only difference between solving equations and inequalities is this:

Example: 12 - 8x > 4; when you multiply or divide by a negative coefficient; the sign must be flipped around.

-8x > -8; divide both sides by -8; the solution is x < 1

Try these: -4x - 3 < 5;

Inequalities

1. Best to complete Khan, classwork, and Test #1 before beginning this section

2. Test # 2, Inequalities is next Friday (Feb. 17). Classwork given Monday

3. Don't forget about test zero; multiplication tables. Unlimited practice and two shots at the test.