1. Standards: E.A.- 1.6, E.A.- 4.8 Objectives 1.solve equations involving absolute value 2.Find the Union and Intersection of two sets

2. Key terms Absolute Value Symbol: | | Sets Union Intersection Venn diagram

4. Examples |x| = 8 Meaning : X = 8 or X = -8 |3a+5| = 6 Meaning : 3a + 5 = 6 or 3a + 5 = -6 Create your own

5. Example 1 Solve the problem for X and graph the solution and check the solution. |X| + 3 = 10

6. Example 2 Solve the problem for p and graph the solution and check the solution |p+2| = 7

7. Example 3 What are the solutions of |12x+6|= 42

8. Example 4 Solve the equation 3|y| + 8 = 17

9. Example 5 |5x|+7 = 3 Absolute value can never be negative

10. Definition of Union All the numbers in all the sets. Example {1, 2, 3, 4, 5, 7, 9}

11. Definition of Union All the numbers in all the sets. Example {1, 2, 3, 4, 5, 7, 9} Definition of Intersection The numbers that the sets have in common. Example {1, 3, 5}

12. Find the Union of Sets U and B. {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 35, 40}

14. Class work Foundations : Pg 224 -225 1 thru 28 all problems Pg 234 1 thru 4, 11 thru 19 Common core: Pg 210-211 1 thru 28 Pg 218 1 thru 4 and 11 thru 19