2. a) y = 3 x b) y = -3 x c) y = (1/2) x d) y = -(1/2) x

3. a) y = lnx + 1 b) y = lnx – 1 c) y = ln(x + 1) d) y = ln(x – 1)

4. a) 64 b) 16 c) 4 2√2 d) 4

5. a) 3 3x b) 27 c) 9 d) 3

6. 1010 a) x =1/3 b) x = -2 c) x =½ d) x =-3

7. 10 a) x = ½ b) x = 1 c) x = ¼ d) no solution

8. 1010 a) 2 b) ½ c) 3/2 d) 2/3

9. 1010 a) 10 y = x b) 10 x = y c) x y = 10 d) y x = 10

10. 10 a) log q = p b) log p = q c) ln q = p d) ln p = q

11. a) 10 b) between 1 and 2 c) between 2 and 3 d) between 3 and 4

12. 1010 a) 100 b) 10 c) 3 d) 2

13. 1010 a) e b) 1 c) 0 d) 10

14. 10 a) 0 b) 13 c) 1 d) no solution

15. 10 a) log (2x/y) b) log (x 2 /y) c) log x 2 /log y d) log (x 2 y)

16. 10 a) 3(log x + log y) b) log 3x + log 3y c) log 3xy d) log 3x + log y

17. 1010 a) 2 b) ½ c) log 8 34 d) 4

18. 1010 a) Log 297 b) Log 900 c) Ln 100 d) 2

19. 10 a) e b) 7 c) e 7 d) no solution

20. 10 a) 1/3 b) 2 c) 2/3 d) no solution

21. 10 a) x = 13/2 b) x = 14 c) x = 35/2 d) x = 11

22. 1010 a) x = 5 b) x = -2 c) x = 5 and x = -2 d) x = 21

23. 10 a) x = 8 b) x = 5 c) x = 3 d) x = 1

24. 10 a) x > 3 b) x < 3 c) x > 6 d) x < 6

25. a) about 4.007 b) about 3.666 c) about 9.399 d) about 55 10

26. a) 5 b) about 3.32 c) about 7.47 d) about 3.49