1. Solve Linear Systems by Graphing
Section 7.1

2. Objectives:
Solve systems of linear equations by graphing.

3. Key Vocabulary: System of linear equations
Solution of system of linear equations
Consistent and independent system

4. Definition: System of Linear Equations, Solution of Systems
A system of linear equations consists of two or more linear equations in the same variables. A solution of a system of linear equations in two variables is an ordered pair that satisfies each equation in the system.

5. Example 1:
Use the graph to solve the system. Then check your solution algebraically.

6. Definition: Consistent and Independent
A linear system that has exactly one solution is called a consistent and independent system.

7. Example 2:
Solve the linear system.

8. #1: Solve the linear system by graphing. Check your solution.

9. #2: Solve the linear system by graphing. Check your solution.

10. #3: Solve the linear system by graphing. Check your solution.

11. Homework Assignment
Section 7.1 Worksheet