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Math Medics
S.o.s. Math: Absolute Value Inequalities
After explaining the geometric definition of absolute value, this lesson will guide you through several examples in solving inequalities that involve absolute value. Practice exercises and their solutions are also included.
Math Planet
Math Planet: Solving Absolute Value Equations and Inequalities
The absolute value of a number a is written as |a| and represents the distance between a and 0 on a number line. An absolute value equation is an equation that contains an absolute value expression. The equation |x|= a has two solutions...
Lawrence Hall of Science
The Math Page: Skill in Algebra: Absolute Value
Here is a site that clearly and thoroughly explains many topics related to absolute value, including solving equations and inequalities involving absolute values. There are example problems solved, problems for the student to attempt,...
Math Is Fun
Math Is Fun: Definition of Absolute Value
Get the definition for Absolute Value. Then, move the slider along the interactive number to see examples. Click on the link, "here's more" for more information.
Khan Academy
Khan Academy: Comparing Absolute Values Challenge
Practice more challenging comparison problems with absolute value. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Interpreting Absolute Value
Practice understanding the meaning of absolute value in real-world scenarios. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Absolute Value to Find Distance Challenge
Practice using absolute value to find distance.
Quia
Ixl Learning: Absolute Value
Brush up on your math skills relating to absolute value then try some practice problems to test your understanding.
Khan Academy
Khan Academy: Comparing Absolute Values 2
In this exercise, students practice comparing absolute values. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Absolute Value Review
Review absolute value, and try some practice problems.
Khan Academy
Khan Academy: Finding Absolute Values
In this exercise, students practice finding absolute values. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Finding Absolute Values
Practice finding the absolute value of a number, like -4 or 3. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Comparing Absolute Values
In this exercise, students practice comparing absolute values. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
University of Vienna (Austria)
University of Vienna: Functions With Absolute Value Differentiable or Not?
Given eight functions containing absolute value elements, choose whether each is differentiable or non-differentiable. At the conclusion of the exercises, the site returns a score which helps judge understanding of the topic.
University of Vienna (Austria)
University of Vienna: Trig Functions With Absolute Value Differentiable or Not?
Given eight trigonometric functions containing absolute value elements, choose whether each is differentiable or non-differentiable. At the conclusion of the exercises, the site returns a score which helps judge understanding of the topic.
Oswego City School District
Regents Exam Prep Center: Absolute Value of Complex Numbers
This tutorial presents the absolute value of complex numbers using formulas, graphs, and examples. There are practice problems and a teacher resource page to assist students in understanding the concept.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Meaning of an Absolute Value Inequality
"Dr. Math" presents an in-depth discussion of the meaning of an absolute value inequality. The discussion tries to clarify some of the mis-conceptions surrounding absolute value.
National Council of Teachers of Mathematics
The Math Forum: Inequalities and Absolute Value Case Method
"Dr. Math" responds to a student question on how to use the case method in solving absolute value ienqualities.
Learning Wave Communications
Learning Wave: Absolute Value: Danger for Deep Sea Carl
In this interactive math game, students use absolute value to determine how many feet below sea level Carl must be to stay away from the shark.
Wolfram Research
Wolfram Math World: Absolute Value
Defines the concept of absolute value in a variety of mathematical methods and difficulties. Includes special links for further investigation.
Texas Instruments
Texas Instruments: Absolute Value and Piecewise Functions
Students will graph absolute value and piecewise functions on graphing calculators and see the effects of a, h, and k.
CK-12 Foundation
Ck 12: Algebra: Additive Inverses and Absolute Values
[Free Registration/Login may be required to access all resource tools.] In this lesson, students learn about additive inverses and absolute values.
Khan Academy
Khan Academy: Compare and Order Absolute Values
Write an inequality to compare absolute values. Order numbers written in absolute value form from least to greatest. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Absolute Value Graphs Review
The general form of an absolute value function is f(x)=a|x-h|+k. From this form, we can draw graphs. This article reviews how to draw the graphs of absolute value functions.