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Practice Exam 2 Nniii: Instructions: C4i’ VolIrS(1f 50 lilillUt(S to (0111 ) 1 1(’tc tins pr1(ti(’ exaui. Justify cacli aiiswvr. 1. T 12. 13. 2. 3 11. 4. 15. 5. 16. U. 17. 18. - -?s - fC) T LJ 8. 19. Vi’ 9. 10. -II \ 11. - (u) 20. H 21. ±) - 23. (L) -) 1 cc: C’ -c + + RD RD RD Lz C + cI + RD RD True or False For I—s, (ollipletely write either, ‘‘True,’’ 1. (1(1) + (‘) = (ii) + or, “False.” (U OK 2. (.t + g)’ = :r” + y’ ( — 3. ‘ U+!J/+/’ .L2 4. (:rij)” = 5. /i= //i] VAt, / \fl 6 7 8. ,r — + 2 7,c + 12 has 6 roots. — — ,—. ) 1—-’ Algebra !). buil x where ( - ( — 5)( — 5 = 10. - x C 10. If q(r) is afl iHv(rtil)1(’ friiot iou. atI(l q( ) = —2. what 1 is — I lie value of j ii. Find the ol /(:r) inverse = — 3:i:. (You call check your answer by seeing if f = 7 -7 -) 2 — _3 I 12. What is the implied domain of g(.r) interval.) = —3/6r r — iS 8 — 18? (Your answer should be an Q x /3 > ) 13. Suppose u the following nmiilu’r as an integer in 2 — lac > 0. Writ 0 and that b standard fonn: a ( 0 — 4) +b ( — 1(U) + — r >c 4.4 + + ± N rJ + x > t .x S (J cii + 01 - J 1- K’ h H C — \5c — 21. Conipletelv lactor 3.r + 2 15:r + 23.r + 1.5. (Hint: -3 is a root.) \our aswcr should be a product of a constant polyiioiiiiai awl smile munber of linear mid c iiadrctic poliioiiiia1s that are inonic, and any of the quadratic polyiioinials 1 should have no roots. — J[ L Cri — — o - - ‘ -t-’o?c 3 . 22. Completvly lactor —2,T 2 + 2 1:c + 30 (hint: 5 is a. rool.) 1 + ic Yoir answvr should hiav(’ t 111’ S11e form as (I(scrih(d in the previous prohiciti. tO — -6 C IA c L <. C 1 -6 ‘ - ‘ -2 - - )U +3 G rap lix 23. List all If the 110>11W ii lear Inetors of p(.r) that you know of iruni the graph below. ( l_1 7 (L) 24. Graph 2 Y.r + 1 and label its :r— and y—mtercepts. 25. Graph 26. Graph .u + — 2 and label its aiid label E— its 2— and y—itercepts. and y—iutvrcepts. 27. Graph —(x + 1)2 + 4 and label its vvrtx.