1. Warm Up Perform the indicated operations. If the matrix does not exist, write impossible. 1. 2. 3. 4.

2. 3.6 Matrix Multiplication So far, we've learned how to add and subtract matrices (the sizes had to be the same) and how to multiply a matrix by a scalar. These operations were easy. Multiplying two matrices is a bit different!

3. Row and Columns

4. Matrix Example

5. General Matrix Example

6. General Matrix Multiplication

7. Examples

10. Commutative Property

11. Examples

13. Extra Examples

15. Extension