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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. Sets and Compound Inequalities.
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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
Sets and Compound Inequalities Compound Inequalities: Two inequalities joined by and or orIntersectionUnion Members in Common All Members in Both “and” “or” 4.2
Intersection: Members in Common ( ) ( ) 4.2
Solve & Graph [ ) 4.2
(both must be true)Solve & Graph a Conjunction and [ ( ( 4.2
(both must be true)Solve & Graph a Disjoint Conjunction ( ) 4.2
Union: All Members in Both Sets ) ( ( ) 4.2
(either can be true)Solve & Graph a Union or ) [ [ ) 4.2
Try another … (either can be true)Solve & Graph a Union or ( ) ) ( 4.2
The Biggest Possible Solution ) [ 4.2
Expressing DomainsWith Interval Notation ( ) [ 4.2
Where do we go from here? … • Section 4.3 Absolute Value Equations & Inequalities 4.2