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Interactive
Shodor Education Foundation

Shodor Interactivate: Linear Inequalities

For Students 9th - 10th Standards
Students create linear inequalities and systems of linear inequalities on a coordinate plane. This is like a graphing calculator with advanced viewing options.
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Unknown Type
Khan Academy

Khan Academy: Graphs of Inequalities

For Students 9th - 10th Standards
Graph two-variable linear inequalities.
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Activity
Varsity Tutors

Varsity Tutors: Hotmath: Graphing Calculator Practice Problems

For Students 9th - 10th Standards
Practice using your graphing calculator for linear equation and linear inequality problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
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Unknown Type
Khan Academy

Khan Academy: Systems of Inequalities Word Problems

For Students 9th - 10th Standards
Solve word problems that involve systems of linear inequalities. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
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Unit Plan
Oswego City School District

Regents Exam Prep Center: Linear Inequalities

For Teachers 9th - 10th
A complete review of linear inequalities interval notation, and compound inequalities. Several applications of the compound inequalities are given along with solutions and explanations. Links to sites assisting with graphing calculator...
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Activity
Purple Math

Purplemath: Systems of Linear Inequalities

For Students 9th - 10th Standards
This Purplemath lesson describes how to solve a system of linear inequalities by graphing.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A ced.a.2 and a ced.a.3: How Much Folate?

For Teachers 9th - 10th
This task is designed to be used as an introduction to writing and graphing linear inequalities. Aligns with A-CED.A.2 and A-CED.A.3.
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Activity
Oswego City School District

Regents Exam Prep Center: Linear Inequalities

For Students 9th - 10th
Listed steps to graph an inequality along with a example that is graphed on a coordinate plane. Easy to read and understand!
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Unit Plan
Texas Education Agency

Texas Gateway: Solving Linear Equations and Inequalities

For Students 9th - 10th Standards
When given a table, equation or verbal description, students will solve one- and two-variable equations and inequalities using algebraic steps or graphing methods.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Linear Inequalities in Two Variables

For Students 10th - 12th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers graphing inequalities in two variables.
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Handout
Math Planet

Math Planet: Algebra 1: Graphing Linear Systems

For Students 8th - 9th Standards
Gain an understanding of how to solve linear equations by viewing an example and a video lesson. [3:01]
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Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra

For Students 9th - 10th
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
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Activity
Richland Community College

Rcc: Solving Inequalities Algebraically and Graphically

For Students 9th - 10th
Straightforward explanations on how to solve inequalities. Includes linear inequalities, double inequalities, absolute value inequalities, polynomial inequalities, and rational inequalities.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Determining the Type of Linear System

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a system by graphing when there is no solution or infinitely many solutions.
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Website
Other

Algebra.com: Linear Equation and System Solvers

For Students 9th - 10th Standards
Linear equations can be solved and graphed using this interactive site. This site allows the user to enter any linear equation in standard form and the y-intercept will be found through a step-by-step process. Systems of inequalities can...
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Checking a Solution for a Linear System

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This lesson covers determining if an ordered pair is a solution to a system of linear equations. Students watch a video tutorial, explore guided notes and attempt...
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Unit Plan
Mangahigh

Mangahigh: Algebra: Inequalities on a Number Line

For Students 6th - 8th Standards
Students learn about the concept of graphing inequalities by exploring a tutorial. They can then test their knowledge by taking a ten question assessment that increases in difficulty as they correctly answer questions.
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Unit Plan
Mangahigh

Mangahigh: Algebra: Inequalities

For Students 6th - 8th Standards
Students learn about the concept of inequalities by exploring a tutorial. They can then test their knowledge by taking a ten question assessment that increases in difficulty as they correctly answer questions.
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Activity
Government of Alberta

Learn Alberta: Linear Inequality Graph

For Students 9th - 10th
Learn Alberta offers an interactive Java applet to manipulate and view all types of graphs of linear equations and inequalities.
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Unknown Type
Khan Academy

Khan Academy: Two Variable Inequalities Word Problems

For Students 9th - 10th Standards
Solve word problems that involve linear inequalities in two variables. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Activity
Texas Instruments

Texas Instruments: Inequalities, They Are Not Just Linear Anymore!

For Teachers 9th - 10th Standards
Students study quadratic relationships and explore the process of graphing quadratic inequalities and systems of quadratic inequalities. They will solve these inequalities algebraically and graph them on a coordinate plane.
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Handout
Purple Math

Purplemath: Solving Quadratic Inequalities: Concepts

For Students 9th - 10th Standards
Introduces a conceptual basis for solving quadratic inequalities, looking at linear inequalities and using a knowledge of what quadratic graphs look like.
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Applications With Inequalities

For Students 6th - 9th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students learn how to solve real-world problems involving inequalities. Students watch a video tutorial, explore guided notes and attempt practice...
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Unit Plan
CK-12 Foundation

Ck 12: Algebra: Multi Step Inequalities

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] In this lesson students solve inequalities that involve more than one step to isolate the variable and graph the solution. Students examine guided notes, review...