# Section 4.2 Intersections, Unions & Compound Inequalities  Using Set Diagrams and Notation  Intersections of Sets Conjunctions of Sentences and  Unions.

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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 4.21

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

Intersection: Members in Common ( ) )( 4.23

Notation: Abbreviated Compound Inequalities 4.24

Solve & Graph [ ) 4.25

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

No Solutions: Disjoint Sets  The Empty Set 4.27

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

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

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

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

The Biggest Possible Solution [ ) 4.212

Expressing Domains With Interval Notation [ ( ) 4.213

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

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