National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Solving Polynomial Inequalities
"Dr. Math" responds to a student question on how to find the solution to a polynomial inequality. Dr. Math's solution is found through analyzing the graph of the function.
McGraw Hill
Glencoe: Self Check Quizzes 2 Inequalities
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of inequalities. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It"...
Oswego City School District
Regents Exam Prep Center: Algebra Ii: Absolute Value Inequalities
Resources to help you plan classroom instruction on absolute value inequalities: a lesson with several examples and step-by-step solutions; a six-question quiz with answers; and a teacher resource with guidelines for setting up and...
Other
Quick Math: Graph Equations and Inequalities
This resource is from the QuickMath website that illustrates how to graph equations, inequalities and a system.
Oswego City School District
Regents Exam Prep Center: Multiple Choice Practice: Equations and Inequalities
Check your understanding of equations and inequalities by completing this multiple-choice practice test. You may use a graphing calculator to solve the problems and check your answers at any given time.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Absolute Value Inequalities
Find a quick, concise explanation of how to solve an absolute value inequality. Step by step examples are included to help you understand how to solve this inequality by breaking it into a compound inequality.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra: Linear Inequalities
Using this tutorial, you'll learn how to solve linear inequalities and show the solution via interval notation and graphing.
Other
Lake Tahoe Community College: Graphing Inequalities
This site shows the steps for solving inequalities and gives example problems that are worked through step by step and then graphed. Also includes some exercises for you to do on your own.
Illustrative Mathematics
Illustrative Mathematics: 7.ee Sports Equipment Set
In this lesson, 7th graders write and solve an inequality to solve the problem.
Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems
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.
Illustrative Mathematics
Illustrative Mathematics: A Ced, a Rei Basketball
In this task, two brothers track how many games they have each won. Students are asked to make calculations based on the percentage of games won. They set up a rational equation (and a rational inequality) in one variable, and then solve...
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Programacion Lineal
In Spanish. In this interactive unit learn how to solve graphically a system of linear inequalities with two unknowns and apply it to everyday life application.
Khan Academy
Khan Academy: Solutions of Inequalities: Algebraic
Given a two-variable linear inequality, check whether a given pair of values is a solution of the inequality. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Geometry Help
Geometry Help: Hinge Theorem
Provides a detailed definition of the Hinge Theorem with step-by-step instructions and methods for solving problems on your own.
Texas Instruments
Texas Instruments: Quadratic Inequalities
Students solve quadratic inequalities using graphs, tables, and algebraic methods.
Texas Instruments
Texas Instruments: Linear Inequalities: Using Graphs and Tables
Students learn to estimate the solution set, in real numbers, of a linear inequality using graphical methods on a number line and on a Cartesian (x-y) graph. They also learn how to solve inequalities using tables.
Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems: Quadratic Equations
Practice using your graphing calculator for solving and graphing quadratic equations. 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.
Texas Instruments
Texas Instruments: Inequalities, They Are Not Just Linear Anymore!
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.
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Quadratic Inequalities
Using this tutorial, you'll learn two methods of solving quadratic inequalities: using a sign graph of factors and using the test-point method. Offers step-by-step written examples, and practice problems for you to complete.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Ecuaciones Sistemas E Inecuaciones
Interactive exercises to supplement classroom instruction to solve equation of second degree or higher and also inequalities.
CK-12 Foundation
Ck 12: Algebra: Testing Solutions for Linear Inequalities
[Free Registration/Login may be required to access all resource tools.] Write and solve linear inequalities.
Discovery Education
Discovery Education: Web Math: Algebra
This WebMath site provides links to tutorials and lessons in both Algebra I and II. Links to topics such as factoring, solving equations, polynomials, simplifying equations, graphing, and much more.
CK-12 Foundation
Ck 12: Arithmetic: Comparison of Unit Rates
[Free Registration/Login may be required to access all resource tools.] Compare unit rates using inequality symbols
Geometry Help
Geometry Help: Triangle Inequalities
Explains the basic concept of triangle inequalities with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
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