1. Solving Systems of Equations by Graphing
The lines intersect at (2, 1),
so (2, 1) is the solution.
Check
That was easy

2. More Solving Systems of Equations by Graphing
The lines intersect at (6, -1),
so (6, -1) is the solution.
Check
That was easy

3. Systems With No Solution
The lines do not intersect, so there is no solution.
Notice that the lines have the same slope with different y-intercepts.
The lines are parallel.
That was easy

4. Systems With Infinitely Many Solutions
The lines are exactly the same, so there are an infinite number of solutions
Notice that the lines have the same slope and the same y-intercepts.
The lines are exactly the same.
That was easy

5. Summary of Types of Solutions to Systems of Equations
Different Slopes
The lines intersect at one point, so there is one solution.
Same Slopes & Different y-Intercepts
The lines never intersect, so there are no solutions.
Same Slopes & Same y-Intercepts
The lines exactly the same, so there are an infinite number of solutions.

6. Solving Systems of Equations by Substitution
Check
Check
Asi de Facil

7. More Solving Systems of Equations by Substitution
Check

8. Homework
Page 367: 10 – 18 Even Numbers
Page 375: 12 – 22 Even Numbers

9. Solving Systems of Equations by Elimination
That was easy
Check
Check

10. Multiplying by Negative 1
Asi de Facil

11. Multiplying by Numbers Other Than 1
Asi de Facil

12. Multiplying by Both Equations
Asi de Facil

13. Homework
Page 382: 8 – 20 Even Numbers