38. f(x) = x² at x = -1 %3D

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
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Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
Problem 9T
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Question 38

IT X
26. f(x) — сos
at x :
2
0.5
60
13.2
75
12.5
IT X
90
11.9
27. f(x) = tan
at x
= 0.5
2
105
11.2
120
10.7
IT X
at x = 1
2
28. f(x) = sin
1
at x = 3
Data Source: Arnd Leike, "Demonstration of the
Exponential Decay Law Using Beer Froth," European
Journal Physics 23 (2002): 21–26.
29. f(x) =
x + 3
30. f(x) — е* at x %3D 0
46. The height f(x), in feet, of the tide at time x hours,
where the graph of y = f(x)is provided in Fig-
ure 2.9, over intervals [0.25, 0.50] and [1, 2]
31. f(x) = lnx at x = 9
32. f(x) = tan x at x = 0
33. f(x) = tan
IT X
at x = 0.95
2
y
4
1
34. f(x) = ln – at x = 1
3
35. f(x) = In
1
at x = 0.1
2
36. f(x) = e-* at x = 0
1
Algebraically determine the tangent line for y = f(x)
at the point specified in Problems 37 to 42. Graph both
y = f(x) and the tangent line on the same plot.
0.5
1
1.5
Figure 2.9 Tidal height.
37. f(x) — Зх — 7atx — 3
38. f(x) = x² at x = –1
Approximate the instantaneous rates of change of the
given functions at the points specified in Problems 47 to
50. These are the same functions as those in Problems 43
39. f(x) = 3x² at x = -2
40. f(x) = x³ at x = 1
to 46.
Vx +h+ Vx
Vx +h+ /x
47. P(t) = 8.3(1.33)' is the number (in millions) of peo-
ple living in the United States t decades after 1815 at
the points t = 0 and t = 2.
41. Jx at x =
= 9. Hint: Multiply by
42. V5x at x = 5
Transcribed Image Text:IT X 26. f(x) — сos at x : 2 0.5 60 13.2 75 12.5 IT X 90 11.9 27. f(x) = tan at x = 0.5 2 105 11.2 120 10.7 IT X at x = 1 2 28. f(x) = sin 1 at x = 3 Data Source: Arnd Leike, "Demonstration of the Exponential Decay Law Using Beer Froth," European Journal Physics 23 (2002): 21–26. 29. f(x) = x + 3 30. f(x) — е* at x %3D 0 46. The height f(x), in feet, of the tide at time x hours, where the graph of y = f(x)is provided in Fig- ure 2.9, over intervals [0.25, 0.50] and [1, 2] 31. f(x) = lnx at x = 9 32. f(x) = tan x at x = 0 33. f(x) = tan IT X at x = 0.95 2 y 4 1 34. f(x) = ln – at x = 1 3 35. f(x) = In 1 at x = 0.1 2 36. f(x) = e-* at x = 0 1 Algebraically determine the tangent line for y = f(x) at the point specified in Problems 37 to 42. Graph both y = f(x) and the tangent line on the same plot. 0.5 1 1.5 Figure 2.9 Tidal height. 37. f(x) — Зх — 7atx — 3 38. f(x) = x² at x = –1 Approximate the instantaneous rates of change of the given functions at the points specified in Problems 47 to 50. These are the same functions as those in Problems 43 39. f(x) = 3x² at x = -2 40. f(x) = x³ at x = 1 to 46. Vx +h+ Vx Vx +h+ /x 47. P(t) = 8.3(1.33)' is the number (in millions) of peo- ple living in the United States t decades after 1815 at the points t = 0 and t = 2. 41. Jx at x = = 9. Hint: Multiply by 42. V5x at x = 5
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