Graphing – Graphing Inequalities in Two Variables

Graphing Linear Inequalities

For FREE access to this lesson, select your course from the categories below.

Students learn to graph inequalities in two variables. For example, to graph y < x + 2, the first step is to graph the boundary line y = x + 2, using the chart method from lesson 4B. Note that greater than or less than means that the boundary line will be dotted, and greater than or equal to or less than or equal to means that the boundary line will be solid. To determine which side of the boundary line to shade, substitute a test point, such as (0, 0), into the original inequality, y < x + 2. Since (0) < (0) + 2, or 0 < 2, is a true statement, the side of the line that contains the point (0, 0) is shaded.
We help you determine the exact lessons you need.
We provide you thorough instruction of every step.
We`re by your side as you try problems yourself.
We test your knowledge until you`ve got it down.
We build your foundation if you`re struggling.
Login to your account
Enter your information to sign in
Lesson limit reached

The learning doesn't have to stop!

Become a MathHelp.com member today and receive unlimited access to lessons, grade reports, reviews and more!

Become a member

The learning doesn't have to stop!

Become a MathHelp.com member today and receive unlimited access to lessons, grade reports, reviews and more!

Become a member
Select your category
Test Prep
Tutoring
Homeschooling
Cancel
Which test are you preparing for?
Cancel
Select your level
Cancel