# Section 4.2 Intersections, Unions & Compound Inequalities - PowerPoint PPT Presentation

Section 4.2 Intersections, Unions & Compound Inequalities

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Section 4.2 Intersections, Unions & Compound Inequalities

## Section 4.2 Intersections, Unions & Compound Inequalities

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1. Section 4.2Intersections, 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 4.2

2. Sets and Compound Inequalities Compound Inequalities: Two inequalities joined by and or orIntersectionUnion Members in Common All Members in Both “and” “or” 4.2

3. Intersection: Members in Common ( ) ( ) 4.2

4. Solve & Graph [ ) 4.2

5. (both must be true)Solve & Graph a Conjunction and [ ( ( 4.2

6. (both must be true)Solve & Graph a Disjoint Conjunction ( ) 4.2

7. Union: All Members in Both Sets ) ( ( ) 4.2

8. (either can be true)Solve & Graph a Union or ) [ [ ) 4.2

9. Try another … (either can be true)Solve & Graph a Union or ( ) ) ( 4.2

10. Where do we go from here? … • Section 4.3 Absolute Value Equations & Inequalities 4.2