1. 4.6 Cramer’s Rule 1 2 3 System of 2 Equations System of 3 Equations
Practice Problems

2. Cramer’s Rule
Remember how much fun it was to solve systems of equations by:
Substitution?
Elimination?
Cramer’s Rule is a third method

3. Systems of 2 Equations

4. 2 Equation Example Use Cramer’s Rule to solve the system of equations

5. 2 Equation example (Cont.)
Evaluate each determinant Simplify Solution Set: (4, -1)

6. Systems of 3 Equations

7. 3 Equation Example

8. 3 Equation Example (Cont.)

9. Practice Problems
Page 192
Problems 4-9, 12-19, 26-29