GO OVER YOUR EXAM REVIEW. MONDAY IS THE ONLY DAY YOU MAY ASK QUESTIONS!
Selected answers from review:
P. 63
6. did in class
9 ditto
11 min= 0 max = 26
12 (1,-1,-3)
15 {-1 2
2 -3}
16. {10 -9 11
9 10 6
-1 -7 -15}
17. {16 21
43 -35}
19. -58 20. 102 21. -22
25 a) { -5 -7
-2 -3 } b) no inverse
30 did in class
P. 91-in book
p. 105 1. 11 6. up 2 7. right 1 8. left 4 down 3
9. -2.5 , 2.5, 0
10. -square root 2, positve square root 2, -1, 1
11. - square root 3, pos. square root 3, 3
12, -2, 2
18. -9, -1, 4 19. -5, -1.5, 2 21. -3.5, -3, -1/3, 1
22. y = x3- 8x2 + 4x + 48
24. y = x4 +x3 +x2++x
27. zeros:0 (multipl. 3) -4 (multipl. 1) turning pts:3
29. zeros:-1 (multipl. 2) 3/4 (multi. 2) turning pts :3
p. 173 is all of the material we have been working on for the last 4+ weeks.
