Thinking algebraically about inequalities

12 videos
4 skills
In this tutorial you'll discover that much of the logic you've used to solve equations can also be applied to think about inequalities!

Multiplying and dividing with inequalities

VIDEO 10:27 minutes
Our discussion of linear inequalities begins with multiplying and dividing by negative numbers. Listen closely for the word "swap." Super important!

Multiplying and dividing with inequalities example

VIDEO 2:54 minutes
In addition to solving the inequality, we'll graph the solution. Remember to swap if you mutiply both sides of the inequality by a negative number.

Constructing and solving a one-step inequality

VIDEO 2:09 minutes
Inequalities are more than abstract concepts and exercises. They help solve real life problems. Here's an example.

One-step inequalities

Practice solving inequalities in one step.

One-step inequality involving addition

VIDEO 1:54 minutes
One-Step Inequalities

Inequalities using addition and subtraction

VIDEO 7:48 minutes
Inequalities Using Addition and Subtraction

Solving a two-step inequality

VIDEO 4:32 minutes
We're turning up the heat a little and asking you to help us solve a multi-step inequality problem.

Two-step inequalities

Solve 2-step inequalities like 3x + 2 > 5.

Multi-step inequalities

VIDEO 8:02 minutes
Compound Inequalities.

Multi-step inequalities 2

VIDEO 3:47 minutes
Multi-Step Inequalities 2

Multi-step inequalities 3

VIDEO 5:38 minutes
Multi-Step Inequalities

Multi-step linear inequalities

Solve linear inequalities in multiple steps.

Constructing and solving a two-step inequality

VIDEO 6:39 minutes
We'll talk you through this fun and challenging inequality problem.

Constructing and solving a multi-step inequality example

VIDEO 6:40 minutes
Learn how to solve an inequality word problem about cell phone texting plans.

Constructing, solving two-step inequality example

VIDEO 2:01 minutes
Let's tackle this word problem together. We'll interpret the information and then construct a linear inequality to solve it.

Interpreting and solving linear inequalities

Practice constructing, interpreting, and solving linear inequalities that model real-world situations.