9. log5 25=2
11. log1/164=−12
13. log10 1=0
15. log10 0.1=−1
17. loga 5=2
19. loga(13/2)=3
21. 25=32
23. 102=100
25. 100=1
27. 10−2=0.01
29. 81/3=2
31. ex=2
33. 3
35. 4
37. −3
39. 32
41. 14
43. 0
45. 1
47. 7
49. 5
51. 4
53. 8
55. (−1, ∞)
57. (1, ∞)
59. (2, ∞)
61. (1, 2)
63. (−∞, 0)∪(0, ∞)
65. (12, ∞)
67. (−∞,−1)∪(0, ∞)
69. (−∞,−1)∪(2, ∞)
71.
f
a
d
b
e
c
73. Domain =(−3, ∞) Range =(−∞, ∞) Asymptote: x=−3
75. Domain: (1, ∞); range: (−∞, ∞); asymptote: x=1
77. Domain =(0, ∞) Range=(−∞, ∞) Asymptote: x=0
79. Domain: (1, ∞); range: (−∞, ∞); asymptote: x=1
81. Domain: (−∞, 0); range: (−∞, ∞); asymptote: x=0
83. Domain =(0, ∞) Range =[0, ∞) Asymptote: x=0
85. Domain =(1, ∞) Range =(−∞, ∞) Asymptote: x=1
87. Domain =(−∞, 3) Range =(−∞, ∞) Asymptote: x=3
89. Domain: (0, ∞); range: (−∞, ∞); Asymptote: x=0
91. Domain =(−∞, 3) Range =(−∞, ∞) Asymptote: x=3
93. 1
95. 2
97. 4
99.
101.
103.
105.
107. Horizontal shift to the left by 1 and reflection about the x-axis
109.
102
2020
The price decreases faster in the beginning, but then the decreases in price become slower as time goes on.