Ch 9: GACE Math: Matrices & Determinants

About This Chapter

Watch our video lessons to refamiliarize yourself with matrices and determinants. Our instructors help you prepare to answer these types of questions on the GACE Mathematics assessment.

GACE Math: Matrices & Determinants - Chapter Summary

Refresh your memory on subject matter involving matrices and determinants in preparation for the GACE Math assessment by completing this chapter's lessons. Some of the topics covered in the lessons include:

  • The definition for a matrix
  • Matrix notation
  • Matrix row operations
  • Solving inverse matrices
  • Taking a determinant of a matrix

If you want to see only part of a lesson discussing a main point, use the video tags to jump to that section of the video. Be sure to take the multiple-choice quizzes to confirm your understanding of the material.

6 Lessons in Chapter 9: GACE Math: Matrices & Determinants
Test your knowledge with a 30-question chapter practice test
What is a Matrix?

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.

How to Perform Matrix Row Operations

2. How to Perform Matrix Row Operations

Watch this video lesson to learn how easy it is to perform row operations on a matrix. Learn how to perform the three basic operations easily and quickly.

Matrix Notation, Equal Matrices & Math Operations with Matrices

3. Matrix Notation, Equal Matrices & Math Operations with Matrices

Watch this video lesson to learn about the basics of matrices and what kinds of math operations you can do with them. Also learn how to determine whether two matrices are the same or not.

Multiplicative Inverses of Matrices and Matrix Equations

4. Multiplicative Inverses of Matrices and Matrix Equations

Watch this video lesson to learn about another method you can use to solve a matrix problem if you are given the inverse of the matrix. You will also learn the identifying mark of the multiplicative inverse of a matrix.

How to Solve Inverse Matrices

5. How to Solve Inverse Matrices

Watch this video lesson to learn what kinds of matrix operations you can take to find the inverse of a matrix. Also learn why matrix inverses are useful.

How to Take a Determinant of a Matrix

6. 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!

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the GACE Mathematics (522): Practice & Study Guide course

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