Warm-up

1
Warm-up

1. Complete the statement Two lines in the same
   plane are ___________ if they do not intersect.
2. Graph -2x y 1

2
Solving System of Equations

• Solve by Graphing
• Unit 2

3
Vocab ?

•  

f(x)
g(x)
g(x)
f(x)
f(x)
g(x)
NO SOLUTIONS
INFINITE SOLUTIONS
ONE SOLUTION
4
The BIG picture!
Solving Systems of Equations
Graphing
Elimination
Substitution
5
Classifying systems with 2 names

• Do the lines touch?
• Yes ?
• No ?

• If YES, do they have just one solution point?
• Yes ?
• No ?

Independent
consistent
Inconsistent
Dependent
6
Classify each system

• Ex 1. Ex 2.

• Ex. 3 Ex. 4

7
IS THE POINT A SOLUTION

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8
Use the graph to find the solution

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9
Ex 8) Solve by graphing

•  

10
Ex 9) Solve by graphing

•  

11
Ex 10) Solve by graphing

•  

12
Ex 11) Solve by graphing

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13
Homework Workbook Page 104 105 (1-17 ODD)