1. C I AC I AD U OD U O disjunction conjunction union intersection orand U U Notes 4.2 Compound Inequalities unite, combinewhere they cross, what they share

2. D U O disjunction or union 1) x 3 023 O O 2)4 < x or x ≤ 0 0 O 4 x > 4 O unite, combine U

3. D U O disjunction or union 3) t ≥ -3 or t ≤ 9 0-39 O O unite, combine U R

4. C I A conjunction and intersection 4) x > 1 and x < 5 015 O O 5)-9 ≤ x < 2 0 O 2 cross, share U -9 O O same as 1 < x < 5

5. C I A conjunction and intersection 6) x > 2 and x ≥ 6 026 O O 7)x ≤ 3 and x > 4 0 O 3 O cross, share U 4 ø

6. D U O disjunction or union 3) t ≥ -3 or t ≤ 9 0-39 O O 8)x 3 0 O 3 O unite, combine U -2 R