mac1105_review_2_ans

# mac1105_review_2_ans - Answers Review Unit II(b cfw_2...

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Answers – Review Unit II 1. (a) (Empty) (b) { } 2 (c) { } 1, 9 (d) { } 9,124 2. 2 (1 2 ) rL m S =− 3. (a) [ ) 1, +∞ (b) [ ) 7, 3 4. (a) { } 2 (b) (c) 6 ,4 5 ⎧⎫ ⎨⎬ ⎩⎭ (d) 9 ,3 13 5. (a) (b) ( ) , −∞ +∞ (c) 57 , 22 ⎛⎞ ⎜⎟ ⎝⎠ (d) 73 ,, −∞− +∞ 6. [] 51 3 ; 1 8 , 8 k +≤ 7. (a) (, ) 8 5 dPQ = (b) 3 0, 2 (c) Yes 8. ( ) ( ) 53 2 5 xy −+ += 9. ( ) ( ) 52 3 2 +− = 10. Center: ( ) 2,1 Radius: 44 3 3 3 r == 11. 43 1 5 x y −= 12. 28 35 yx = −− , 8 5 13. 843 x h 14. 1; 1; 2 15. (a) Increasing on (3, ) +∞ . Decreasing on (, 2 ) a n d ( 0 , 3 ) −∞ − . Constant on (2 ,0 ) . (b) [2,4] 16. a, c, and d. 17. (a) neither (b) even (c) odd (d) even 18. 1 8 19. shift right 1 unit, upward 2 units 20.

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mac1105_review_2_ans - Answers Review Unit II(b cfw_2...

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