1. Section 4.2 Intersections, Unions & Compound Inequalities  Using Set Diagrams and Notation  Intersections of Sets Conjunctions of Sentences and  Unions of Sets Disjunctions of Sentences or  More Interval Notation  Specifying Domains 4.21

2. Sets and Compound Inequalities Compound Inequalities: Two inequalities joined by and or or Intersection Union Members in Common All Members in Both “and” “or” 4.22

3. Intersection: Members in Common ( ) )( 4.23

4. Notation: Abbreviated Compound Inequalities 4.24

5. Solve & Graph [ ) 4.25

6. (both must be true) Solve & Graph a Conjunction and [ ( ( 4.26

7. No Solutions: Disjoint Sets  The Empty Set 4.27

8. (both must be true) Solve & Graph a Disjoint Conjunction ( ) 4.28

9. Union: All Members in Both Sets ( ) ) ( 4.29

10. (either can be true) Solve & Graph a Union or [ ) ) [ 4.210

11. Try another … (either can be true) Solve & Graph a Union or ( ) ( ) 4.211

12. The Biggest Possible Solution [ ) 4.212

13. Expressing Domains With Interval Notation [ ( ) 4.213

14. Where do we go from here? …  Section 4.3 Absolute Value Equations & Inequalities Section 4.3 Absolute Value Equations & Inequalities 4.214