This is a PowerPoint lesson that I developed for my Algebra 2 classes to teach section 4.5 of the Prentice Hall textbook -- CA Algebra 2. It shows how to find and use the inverse and the determinant of a 2 x 2 matrix.
More lessons on Matrices:
Addition & Subtraction of Matrices
Determinants of a 2 x 2 Matrix
Determinants of a 3 x 3 Matrix
Solving Systems of Equations using Cramer’s Rule
Fun ways to review Matrices:
Matrix Inverses Scavenger Hunt
Matrix Multiplication Scavenger Hunt
Solving Matrix Equations Scavenger Hunt
Matrix Operations Scavenger Hunt
Matrices Review Fun Powerpoint
Note: Math Type 5.0 was used to create many of the slides.