2. A) 30L , B) G(d) = 80 – (d/8)

3. x1 = x2 = -3

4. All four of these are graphs, but the points that must be included are as follows:

5. Vertex: (0, -2)

6. Any two valid points must be shown: eg. (0,-4) and (1, -3)

7. Intersection of the asymptotes: (0, -2)

8. Inflection point: (0, -2)

9. b)

10. b)

11. a) DOWN, V: (0, 0) , a = -3

12. b) UP, V: (3, 2) , a = 1

13. c) UP, V: (0, -2), a = 1

14. c, a, d, b, e

15. up, x = 1/2 , x-intercepts are (2, 0) and (-1, 0) , vertical reflection about the x-axis

16. an = 2n2 – 3n +5 , a12 = 257

17. an = n2 – n , a10 = 90

18. an = 2n2 – n , a7 = 91 , a10 = 190 , NO

19. h = 7√3

20. d = 9√2

21. x = 2√70 , m<B = sin-1(9/19) ≈ 28.3o

22. a = b(tanA) ≈ 8.9

23. m<B = sin-1 (b/c) ≈ 48.6o

24. θ = tan-1 (30/60) ≈ 26.6o