Deck 9: Derivatives
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Unlock Deck
Sign up to unlock the cards in this deck!
Unlock Deck
Unlock Deck
1/250
Play
Full screen (f)
Deck 9: Derivatives
1
Use the graph of
and the given c-value to find
.
A) 4
B) 0
C) 2
D) -6
E) does not exist




A) 4
B) 0
C) 2
D) -6
E) does not exist
does not exist
2
A graph of
is shown and a c-value is given. For this problem, use the graph to find
.
A) 5
B) -15
C) 0
D) 15
E) does not exist




A) 5
B) -15
C) 0
D) 15
E) does not exist
15
3
A graph of
is shown and a c-value is given. For this problem, use the graph to find
.
A) 0
B) 5
C) -5
D) -6
E) does not exist




A) 0
B) 5
C) -5
D) -6
E) does not exist
0
4
A graph of
is shown and a c-value is given. For this problem, use the graph to find
.
A) 0
B) 2
C) -4
D) -6
E) does not exist




A) 0
B) 2
C) -4
D) -6
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
5
Use the graph of
and the given c-value to find
.
A) 2
B) -2
C) 6
D) 0
E) does not exist




A) 2
B) -2
C) 6
D) 0
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
6
Use properties of limits and algebraic methods to find the limit, if it exists.
A) -45
B) 54
C) 45
D) -54
E) does not exist

A) -45
B) 54
C) 45
D) -54
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
7
Complete the table and use it to predict the limit, if it exists.

A) -5
B) 5
C) -4
D) 4
E) does not exist


A) -5
B) 5
C) -4
D) 4
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
8
A graph of
is shown and a c-value is given. For this problem, use the graph to find
.
A) 5
B) 0
C) -15
D) 15
E) does not exist




A) 5
B) 0
C) -15
D) 15
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
9
Use properties of limits and algebraic methods to find
if the limit exists.
A) 0
B) 10
C) ∞
D) -10
E) 5

A) 0
B) 10
C) ∞
D) -10
E) 5
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
10
Use the graph of
and the given c-value to find
.
A) -8
B) -6
C) 3
D) -4
E) does not exist




A) -8
B) -6
C) 3
D) -4
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
11
Use the graph of
and the given c-value to find
.
A) -6
B) 0
C) 8
D) 2
E) does not exist




A) -6
B) 0
C) 8
D) 2
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
12
Complete the table and use it to predict the limit, if it exists.

A) 44.0
B) -22.0
C) 22.0
D) -0.5
E) does not exist


A) 44.0
B) -22.0
C) 22.0
D) -0.5
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
13
Use properties of limits and algebraic methods to find the limit, if it exists.
A) 63
B) 65
C) 60
D) 68
E) does not exist

A) 63
B) 65
C) 60
D) 68
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
14
Use the graph of
and the given c-value to find
.
A) -6
B) 0
C) 2
D) 6
E) does not exist




A) -6
B) 0
C) 2
D) 6
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
15
Use properties of limits and algebraic methods to find the limit, if it exists.
A)
B)
C)
D)
E) does not exist

A)

B)

C)

D)

E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
16
Use properties of limits and algebraic methods to find the limit, if it exists.
A) 
B)
C)
D)
E) does not exist

A)

B)

C)

D)

E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
17
Use the graph of
and the given c-value to find
.
A) -6
B) -5
C) -1
D) 3
E) does not exist




A) -6
B) -5
C) -1
D) 3
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
18
Use properties of limits and algebraic methods to find the limit, if it exists.
A)
B) -3
C)
D)
E) does not exist

A)

B) -3
C)

D)

E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
19
Use the graph of
and the given c-value to find
.
A) -6
B) -9
C) -1
D) 3
E) does not exist




A) -6
B) -9
C) -1
D) 3
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
20
Use the graph of
and the given c-value to find
.
A) -6
B) -7
C) 3
D) -5
E) does not exist




A) -6
B) -7
C) 3
D) -5
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
21
If
and
, find
.
A)
B)
C) -10
D)
E) does not exist



A)

B)

C) -10
D)

E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
22
Determine whether the function is continuous or discontinuous at the given x-value.
A) continuous
B) discontinuous

A) continuous
B) discontinuous
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
23
For the given x-value, use the figure to determine whether the function is continuous or discontinuous at that x-value.
A) discontinuous
B) continuous


A) discontinuous
B) continuous
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
24
If
and
, find
.
A) 20
B) 6
C) -2
D) -14
E) does not exist



A) 20
B) 6
C) -2
D) -14
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
25
Determine whether the given function is continuous. If it is not, identify where it is discontinuous.
A) discontinuous at
B) discontinuous at
C) discontinuous at
D) discontinuous at
E) continuous everywhere

A) discontinuous at

B) discontinuous at

C) discontinuous at

D) discontinuous at

E) continuous everywhere
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
26
Use properties of limits and algebraic methods to find the limit, if it exists.
A) 0
B) -2
C) 2
D) 7
E) does not exist

A) 0
B) -2
C) 2
D) 7
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
27
Suppose that the cost C in dollars of obtaining water that contains p percent impurities is given by
. Find
, if it exists.
A) $0
B) $13
C) $117
D) $1,300
E) does not exist


A) $0
B) $13
C) $117
D) $1,300
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
28
A certain calling card costs 6.1 cents per minute to make a call, rounded up to the nearest minute. However, when the card is used at a pay phone, there is an additional 61 cent connection fee. If
is the charge from a pay phone for a call lasting t minutes, create a table of charges for calls lasting close to 1 minute and use it to find the following limit, if it exists. Round your answer to the nearest cent.
A) $0
B) $0.61
C) $0.73
D) $0.67
E) does not exist


A) $0
B) $0.61
C) $0.73
D) $0.67
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
29
Use properties of limits and algebraic methods to find the limit, if it exists.
A) 0
B)
C)
D)
E) does not exist

A) 0
B)

C)

D)

E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
30
A certain calling card costs 5.2 cents per minute to make a call, rounded up to the nearest minute. However, when the card is used at a pay phone, there is an additional 52 cent connection fee. If
is the charge from a pay phone for a call lasting t minutes, create a table of charges for calls lasting close to 1 minute and use it to find the following limit, if it exists. Round your answer to the nearest cent.
A) $0
B) $0.45
C) $0.57
D) $0.44
E) does not exist


A) $0
B) $0.45
C) $0.57
D) $0.44
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
31
Graph the function with a graphing utility and use it to predict the limit. Check your work either by using the table feature of the graphing utility or by finding the limit algebraically.
A)
B) 18
C)
D) 0
E) does not exist

A)

B) 18
C)

D) 0
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
32
Graph the function with a graphing utility and use it to predict the limit. Check your work either by using the table feature of the graphing utility or by finding the limit algebraically.
A) 10
B) 3
C)
D) 0
E) does not exist

A) 10
B) 3
C)

D) 0
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
33
If
and
, find
.
A) -106
B) -96
C) -81
D) 0
E) does not exist



A) -106
B) -96
C) -81
D) 0
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
34
A certain calling card costs 6.8 cents per minute to make a call, rounded up to the nearest minute. However, when the card is used at a pay phone, there is an additional 68 cent connection fee. If
is the charge from a pay phone for a call lasting t minutes, create a table of charges for calls lasting close to 1 minute and use it to find the following limit, if it exists. Round your answer to the nearest cent.
A) $0
B) $0.68
C) $0.75
D) $0.82
E) does not exist


A) $0
B) $0.68
C) $0.75
D) $0.82
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
35
Suppose that the cost C in dollars of obtaining water that contains p percent impurities is given by
. Find
, if it exists.
A) $0
B) $20
C) $200
D) $2,000
E) does not exist


A) $0
B) $20
C) $200
D) $2,000
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
36
Determine whether the function is continuous or discontinuous at the given x-value.
A) discontinuous
B) continuous

A) discontinuous
B) continuous
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
37
If the revenue for a product (in dollars) is
, and the average revenue per unit is
,
, find
.
A) $900 per unit
B) $0.7 per unit
C) $90 per unit
D) $0 per unit
E) does not exist




A) $900 per unit
B) $0.7 per unit
C) $90 per unit
D) $0 per unit
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
38
Graph the function with a graphing utility and use it to predict the limit. Check your work either by using the table feature of the graphing utility or by finding the limit algebraically.
A) 0
B) 9
C)
D)
E) does not exist

A) 0
B) 9
C)

D)

E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
39
If the revenue for a product (in dollars) is
and the average revenue per unit is
,
, find
.
A) $520 per unit
B) $545 per unit
C) $530 per unit
D) $0 per unit
E) does not exist




A) $520 per unit
B) $545 per unit
C) $530 per unit
D) $0 per unit
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
40
If the profit function for a product is given by
, find
.
A) -3,600
B) -1,600
C) -2,725
D) -4,100
E) does not exist


A) -3,600
B) -1,600
C) -2,725
D) -4,100
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
41
Suppose that the cost C of removing p percent of the particulate pollution from the exhaust gases at an industrial site is given by
. Describe any discontinuities for C(p). Explain what each discontinuity means.
A) C(p) is discontinuous at
. This means that not all pollution can be removed.
B) C(p) is discontinuous at
. This means that none of the pollution can be removed.
C) C(p) is continuous everywhere.
D) C(p) is discontinuous at
. This means that not all pollution can be removed.
E) C(p) is discontinuous at
. This means that none of the pollution can be removed.

A) C(p) is discontinuous at

B) C(p) is discontinuous at

C) C(p) is continuous everywhere.
D) C(p) is discontinuous at

E) C(p) is discontinuous at

Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
42
Use analytic methods to evaluate the limit and determine which type of asymptote (if any) it represents. You can verify your conclusion by graphing the function with a graphing utility, if one is available.
A) limit = 10, horizontal asymptote
B) limit = 10, vertical asymptote
C) limit = 4, horizontal asymptote
D) limit = 4, vertical asymptote
E) does not exist, no asymptote

A) limit = 10, horizontal asymptote
B) limit = 10, vertical asymptote
C) limit = 4, horizontal asymptote
D) limit = 4, vertical asymptote
E) does not exist, no asymptote
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
43
Suppose that the average number of minutes M that it takes a new employee to assemble one unit of a product is given by
, where t is the number of days on the job. Is this function continuous for all 


Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
44
Graph the function using a window with
and
. What does the graph indicate about
A) -5
B) 5
C) 30
D) 0
E) does not exist




A) -5
B) 5
C) 30
D) 0
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
45
Use analytic methods to find the limit as
for the given function.
A) -1500
B) 1500
C) -620
D) 620
E) does not exist


A) -1500
B) 1500
C) -620
D) 620
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
46
Suppose that the average number of minutes M that it takes a new employee to assemble one unit of a product is given by
, where t is the number of days on the job. What is the domain for this application?
A)
B)
C)
D)
E)

A)

B)

C)

D)

E)

Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
47
Determine whether the given function is continuous. If it is not, identify where it is discontinuous and which condition fails to hold. You can verify your conclusions by graphing the function with a graphing utility, if one is available.
A) discontinuous at
B) discontinuous at
C) discontinuous at
D) discontinuous at
E) continuous everywhere

A) discontinuous at

B) discontinuous at

C) discontinuous at

D) discontinuous at

E) continuous everywhere
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
48
This problem contains a function and its graph, where
. Use the graph to determine, as well as you can,
. Check your conclusion by using the function to determine
analytically.
A) 3
B) 0
C) 4
D) 1
E) does not exist





A) 3
B) 0
C) 4
D) 1
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
49
This problem contains a function and its graph, where
. Use the graph to determine, as well as you can, the vertical asymptote. Check your conclusion by using the function to determine the vertical asymptote analytically.
A)
B)
C)
D)
E) no vertical asymptote



A)

B)

C)

D)

E) no vertical asymptote
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
50
Determine whether the given function is continuous. If it is not, identify where it is discontinuous. You can verify your conclusions by graphing the function with a graphing utility, if one is available.
A) discontinuous at
B) discontinuous at
C) discontinuous at
D) discontinuous at
E) continuous everywhere

A) discontinuous at

B) discontinuous at

C) discontinuous at

D) discontinuous at

E) continuous everywhere
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
51
This problem contains a function and its graph, where
. Use the graph to determine, as well as you can, the horizontal asymptote. Check your conclusion by using the function to determine the horizontal asymptote analytically.
A)
B)
C)
D)
E)



A)

B)

C)

D)

E)

Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
52
Use analytic methods to find the limit as
for the given function.
A) 920
B) 240
C) -920
D) -240
E) does not exist


A) 920
B) 240
C) -920
D) -240
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
53
Use analytic methods to find any point of discontinuity for the given function.
A)
B)
C)
D)
E) continuous everywhere

A)

B)

C)

D)

E) continuous everywhere
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
54
Suppose that the average number of minutes M that it takes a new employee to assemble one unit of a product is given by
, where t is the number of days on the job. Is this function continuous for all values of t?

Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
55
Determine whether the given function
is continuous. If
is not continuous, identify where it is discontinuous and which condition(s) fails to hold.
A)
is discontinuous at
since
is not defined and
does not exist.
B)
is discontinuous at
since
is not defined and
does not exist.
C)
is discontinuous at
since
is not defined and
does not exist.
D)
is continuous.
E)
is discontinuous at
since
is not defined and
does not exist.


A)




B)




C)




D)

E)




Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
56
Use a table utility with x-values larger than 10,000 to investigate
. What does the table indicate about
?
A) -3
B) 3
C) 6
D) 0
E) does not exist



A) -3
B) 3
C) 6
D) 0
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
57
This problem contains a function and its graph, where
. Use the graph to determine, as well as you can,
. Check your conclusion by using the function to determine
analytically.
A) 4
B) 1
C) 3
D) 0
E) does not exist





A) 4
B) 1
C) 3
D) 0
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
58
Use analytic methods to evaluate the limit and determine which type of asymptote (if any) it represents. You can verify your conclusion by graphing the function with a graphing utility, if one is available.
A) limit = 0, vertical asymptote
B) limit = 0, horizontal asymptote
C) limit = 2, horizontal asymptote
D) limit = 2, vertical asymptote
E) does not exist

A) limit = 0, vertical asymptote
B) limit = 0, horizontal asymptote
C) limit = 2, horizontal asymptote
D) limit = 2, vertical asymptote
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
59
Use analytic methods to evaluate the limit and determine which type of asymptote (if any) it represents. You can verify your conclusion by graphing the function with a graphing utility, if one is available.
A) limit = 4, vertical asymptote
B) limit = 8, horizontal asymptote
C) limit = 8, vertical asymptote
D) limit = 4, horizontal asymptote
E) does not exist

A) limit = 4, vertical asymptote
B) limit = 8, horizontal asymptote
C) limit = 8, vertical asymptote
D) limit = 4, horizontal asymptote
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
60
Suppose that the average number of minutes M that it takes a new employee to assemble one unit of a product is given by
, where t is the number of days on the job. Is this function continuous at 


Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
61
For the function in this problem, approximate
by using the numerical derivative feature of a graphing utility. Round your answer to three decimal places.
A) -0.298
B) -0.421
C) -0.544
D) -0.187
E) -0.655


A) -0.298
B) -0.421
C) -0.544
D) -0.187
E) -0.655
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
62
For the given function, find the average rate of change over the specified interval.
over
A) 0
B) 4
C) 2
D) -17
E) 17


A) 0
B) 4
C) 2
D) -17
E) 17
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
63
For the function in this problem, find the instantaneous rate of change of the function at the given value.
;
A) 18
B) 6
C) 10
D) 14
E) 13


A) 18
B) 6
C) 10
D) 14
E) 13
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
64
The monthly charge in dollars for x kilowatt-hours (kWh) of electricity used by a residential consumer of Excelsior Electric Membership Corporation from November through June is given by the function
.
Is C continuous at
?

Is C continuous at

Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
65
For the function in this problem, approximate
near
by graphing the function on a graphing utility. Then, zoom in near the point until the graph appears straight, pick two points, and find the slope of the line you see. Round your answer to four decimal places.
A) -0.1641
B) -0.1698
C) -0.5411
D) -0.5102
E) -0.3735



A) -0.1641
B) -0.1698
C) -0.5411
D) -0.5102
E) -0.3735
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
66
For the function in this problem, approximate
near the point
by graphing the function on a graphing utility. Then, zoom in near the point until the graph appears straight, pick two points, and find the slope of the line you see. Round your answer to three decimal places. 
A) 48.050
B) -9.000
C) -8.950
D) 50.970
E) -8.999



A) 48.050
B) -9.000
C) -8.950
D) 50.970
E) -8.999
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
67
The tangent line to the graph of f (x) at
is shown. On the tangent line, P is the point of tangency and A is another point on the line. Find the instantaneous rate of change of f (x) at P.
A) -3
B) 2
C) 1
D) -4
E) does not exist


A) -3
B) 2
C) 1
D) -4
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
68
For the function in this problem, approximate
by computing
with
.
A) 72.9793
B) 73.0369
C) 73.0027
D) 73.1261
E) 72.8793




A) 72.9793
B) 73.0369
C) 73.0027
D) 73.1261
E) 72.8793
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
69
The tangent line to the graph of f (x) at
is shown. On the tangent line, P is the point of tangency and A is another point on the line. Use the coordinates of P and A to find the slope of the tangent line.
A) 2
B) 1
C) -4
D) 5
E) does not exist


A) 2
B) 1
C) -4
D) 5
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
70
The monthly charge in dollars for x kilowatt-hours (kWh) of electricity used by a residential consumer of Excelsior Electric Membership Corporation from November through June is given by the function
.
Is C continuous at
?

Is C continuous at

Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
71
For the function in this problem, find the derivative, by using the definition.
A)
B)
C)
D)
E)

A)

B)

C)

D)

E)

Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
72
Given
, find the average rate of change of f (x) over the following pair of intervals using a calculator if desired:
and
A) 17.9 and 17.99
B) 20.9 and 20.99
C) 19.90 and 19.99
D) 19.90 and 20.99
E) 17.9 and 19.99



A) 17.9 and 17.99
B) 20.9 and 20.99
C) 19.90 and 19.99
D) 19.90 and 20.99
E) 17.9 and 19.99
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
73
The tangent line to the graph of f (x) at
is shown. On the tangent line, P is the point of tangency and A is another point on the line. Find
.
A) 2
B) -2
C) 1
D) -5
E) does not exist



A) 2
B) -2
C) 1
D) -5
E) does not exist
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
74
For the function in this problem, find the slope of the tangent line at the given value.
;
A) 5
B) 19
C) 13
D) -1
E) 21


A) 5
B) 19
C) 13
D) -1
E) 21
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
75
Let
. Use the definition of derivative and the Procedure/Example table in this section to verify that
. Then, find the slope of the tangent to the graph of
at
.
A) 27
B) 12
C) -27
D) -12
E) 0




A) 27
B) 12
C) -27
D) -12
E) 0
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
76
Let
. Use the definition of derivative and the Procedure/Example table in this section to verify that
. Then, find the instantaneous rate of change of f (x) at
.
A) 10
B) 2
C) 8
D) 4
E) -8



A) 10
B) 2
C) 8
D) 4
E) -8
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
77
For the function in this problem, approximate
by using the numerical derivative feature of a graphing utility.
A) 93
B) 75
C) 19
D) -51
E) 84


A) 93
B) 75
C) 19
D) -51
E) 84
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
78
For the function in this problem, approximate
by computing
with
.
A) -0.0171
B) 0.2730
C) -1.0325
D) -0.0483
E) 0.0537




A) -0.0171
B) 0.2730
C) -1.0325
D) -0.0483
E) 0.0537
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
79
The percent p of particulate pollution that can be removed from the smokestacks of an industrial plant by spending C dollars is given by
. Find the percent of the pollution that could be removed if spending C were allowed to increase without bound.
A) 1,700%
B) 17,000%
C) 0%
D) 200%
E) 100%

A) 1,700%
B) 17,000%
C) 0%
D) 200%
E) 100%
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck
80
The monthly charge in dollars for x kilowatt-hours (kWh) of electricity used by a residential consumer of Excelsior Electric Membership Corporation from November through June is given by the function
. What is the monthly charge if 1,700 kWh of electricity is consumed in a month? Round your answer to two decimal places.
A) $1,700.00
B) $169.80
C) $141.30
D) $73.80
E) $118.80

A) $1,700.00
B) $169.80
C) $141.30
D) $73.80
E) $118.80
Unlock Deck
Unlock for access to all 250 flashcards in this deck.
Unlock Deck
k this deck