About This Chapter
Who's it for?
Anyone who needs help learning or mastering GED math material will benefit from taking this course. There is no faster or easier way to prepare for the GED math exam. Among those who would benefit are:
- Students who have fallen behind in understanding how to take the determinant of a matrix or graph and solve absolute value equations
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning math (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about absolute value and matrices
- Students who struggle to understand their teachers
- Students who attend schools without extra math learning resources
How it works:
- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the Absolute Value and Matrices chapter exam.
Why it works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the Absolute Value and Matrices chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any question about absolute value and matrices. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students will review:
This chapter helps students review the concepts in an absolute value and matrices unit of a standard high school math course. Topics covered include:
- Understanding the components of a matrix
- Taking the determinant of a matrix
- Evaluating absolute value expressions
- Solving absolute value equations
- Graphing absolute value equations
- Transforming the graph of an absolute value
1. What is a Matrix?
As math gets more and more complicated and there become more and more numbers flying around, it becomes really handy to put all these numbers in a nice organized grid... hello matrices! Learn about what they are and why there are used.
2. How to Take a Determinant of a Matrix
Matrices are incredibly powerful and can help you do all sorts of things, but one of the most basic (and surprisingly helpful) operations you can perform on one is to take its determinant. Learn how to do that here!
3. What is an Absolute Value?
When we're talking and comparing numbers, we often don't care whether its positive or negative, just how big it is. This is often called the magnitude of a number and we find it by taking the absolute value. Learn all about it here!
4. How to Evaluate Absolute Value Expressions
Substituting values into absolute values doesn't have to be too hard, but it can be if you're given deceiving beginning information. See if you're up to it by checking out this video!
5. How to Solve an Absolute Value Equation
Once you get familiar with any new operation, the next step in any algebra class is to learn how to solve equations with that operation in them. Absolute values are no different. Solve absolute value equations here!
6. Solving Absolute Value Practice Problems
There are many easy mistakes to make when solving absolute value equations. Learn how to avoid those mistakes here by working on examples of absolute value equations with operations on the inside and the outside of the absolute value.
7. How to Graph an Absolute Value and Do Transformations
Absolute value graphs normally look like the letter 'V', but transformations can change that 'V' in a number of different ways. As well as teaching you how to graph absolute values, this video will focus on a specific group of transformations called translations. Learn all about what that means here!
8. Graphing Absolute Value Equations: Dilations & Reflections
Although a basic absolute value graph isn't complicated, transformations can make them sufficiently confusing! In this lesson, you'll practice different transformations of absolute value graphs.
9. Cofactor: Definition & Formula
In this lesson, we'll use step-by-step instructions to show you how to how to find the cofactor of a matrix. We'll begin with the definition of a cofactor, after which you'll learn how to use the formula and perform your own calculations.
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Other chapters within the GED Math: Help and Review course
- Basic Arithmetic: Help and Review
- Math Expressions and Formulas: Help and Review
- Solving Math Word Problems: Help and Review
- Decimals: Help and Review
- Fractions: Help and Review
- Percent Notation: Help and Review
- Calculations, Ratios & Proportions: Help and Review
- Data, Statistics & Probability: Help and Review
- Mechanics of Probability: Help and Review
- Overview of Real Numbers: Help and Review
- Series and Sequences: Help and Review
- Exponents and Exponential Expressions: Help and Review
- Overview of Exponents: Help and Review
- Logarithms and Exponentials: Help and Review
- Radical Expressions: Help and Review
- Algebraic Expressions and Equations: Help and Review
- Functions and Transformations: Help and Review
- Solving & Graphing Inequalities: Help and Review
- Solving & Graphing Complex Numbers: Help and Review
- Algebraic Distribution: Help and Review
- Overview of Linear Equations: Help and Review
- Factoring: Help and Review
- Solving Polynomial Functions: Help and Review
- Quadratic Equations: Help and Review
- Working with Quadratic Equations: Help and Review
- Working with Rational Expressions: Help and Review
- Measurement and the Metric System: Help and Review
- Geometry Topics: Help and Review
- GED Test: General Info