1. Lesson 5-4 Solving Special Systems
Obj: The student will be able to 1) Solve special systems of linear equations in two variables 2) Classify systems of linear equations and determine the number of solutions HWK: p even, 11 Vocab: 1) consistent system 2) inconsistent system 3) independent system 4) dependent system

2. Solve and classify each system
Ex 1) y = x – 3 and x – y – 3 = 0

3. Ex 2) y = -2x + 5 and 2x + y = 1

4. Ex 3) x + 2y = -4 and -2(y + 2) = x

5. Ex 4) y = -2(x – 1) and y = -x + 3

6. Ex 5) Matt has $100 in a checking account and deposits $20 per month
Ex 5) Matt has $100 in a checking account and deposits $20 per month. Ben has $80 in a checking account and deposits $30 per month. Will the accounts ever have the same amount? If so, when? Explain.

7. Classifications of Systems of Linear Equations
Consistent and Independent
Consistent and Dependent
Inconsistent
Number of solution
Exactly one
Infinitely many
None
Description
Different slopes
Same slope
Same y-intercept
Different y-
intercept
Graph
Intersecting lines
Coinciding lines
Parallel lines