1. Warm-Up 2-1

2. 2-1 Solving systems of equations
Solve systems of equations both
graphically & algebraically

3. Solving Systems of Equations with 2 Variables
Lesson 2-1
Solving Systems of Equations with 2 Variables
What is the relationship between the solution(s) to a system of linear equations and the graphs of the lines themselves?
Vocabulary
Consistent
Independent
Dependent
Inconsistent
Elimination Method
Substitution Method

4. Solving systems of equations.
How would you solve the following system?
3x – 2y = -6
x + y = -2
Algebraic Methods
Substitution
Elimination
Graphical Method

5. Consistent systems – have at least 1 solution
Independent – one solution
Dependent – infinite solutions
Inconsistent systems – have no solution

8. Practice/homework
Pg 70-72: #7-13 odds
# odds
# all