1. Daily Vocabulary
Coefficient matrix
Matrix of constants

2. Matrix Equations
11.3 Day Two

3. Writing a matrix equation
The matrix A is made up of all the coefficients in your system of equations. X is the matrix of variables in the system. And B is the constants in the system.
AX=B

4. Example
x+3y=4
3x+5y=2

5. Write the system of equations as a matrix equation.
x-4y=8
3x+2y=6
x-4y=5
4x+y=3
2x-y=4
3x-2y=8

6. Use a calculator to solve.

7. Solve the system.
x-4y=5
4x+y=3
2x-y=4
3x-2y=8

8. Homework
Pg #9-11, 29-46