1. §9-3 Matrix Operations

2. Matrix Notation

3. The matrix has 2 rows and 3 columns

4. Equality of Matrices

5. Matrix Operations AdditionSubtraction Scalar MultiplicationScalar Multiplication

6. Matrix Addition and Subtraction

8. Properties of Matrix Addition

9. Scalar Multiplication

10. Properties of Scalar Multiplication

11. Solving a Matrix Equation Plug in the matrices.

12. Matrix Multiplication

13. 1 st Row 1 st Column 1 st Row 2 nd Column 2 nd Row 1 st Column 2 nd Row 2 nd Column

14. Matrix Multiplication For the product of two matrices to be defined, the number of columns of the first matrix must equal the number of rows of the second matrix. These must be equal

15. Multiplying Matrices

18. “ ” Pg. 854-855 #1-8 all, #9-35 EOO EOO – every other oddEOO – every other odd For example, you would work 9, 13, 17, …For example, you would work 9, 13, 17, … Homework