Deck 4: Section 4: Applications of Differentiation
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Deck 4: Section 4: Applications of Differentiation
1
Find the points of inflection and discuss the concavity of the function. 
A) inflection point at
; concave upward on
; concave downward on 
B) inflection point at
; concare downward on
; concave upward on 
C) inflection point at
; concave downward on
; concave upward on 
D) inflection point at
; concave downward on
; concave upward on 
E) inflection point at
; concave upward on
; concave downward on 

A) inflection point at



B) inflection point at



C) inflection point at



D) inflection point at



E) inflection point at



inflection point at
; concave upward on
; concave downward on 



2
Find all points of inflection on the graph of the function
.
A)
B)
C)
D)
E)

A)

B)

C)

D)

E)


3
Find all points of inflection, if any exist, of the graph of the function
. Round your answers to two decimal places.
A)
B)
C)
D)
E) no points of inflection

A)

B)

C)

D)

E) no points of inflection
no points of inflection
4
Locate any relative extrema and inflection points of the function
. Use a graphing utility to confirm your results.
A) relative minimum value:
; no inflection points
B) relative minimum value:
inflection point: 
C) relative maximum value:
inflection point: 
D) relative minimum value:
no inflection points
E) relative maximum value:
; no inflection points

A) relative minimum value:

B) relative minimum value:


C) relative maximum value:


D) relative minimum value:

E) relative maximum value:

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5
Find all points of inflection of the graph of the function
on the interval
. Round your answer to three decimal places wherever applicable.
A)
B)
C)
D)
E)


A)

B)

C)

D)

E)

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6
Find the points of inflection and discuss the concavity of the function
on the interval
.
A) no inflection points. concave up on
B) concave upward on
; concave downward on
; inflection point at 
C) no inflection points. concave down on
D) concave downward on
; concave upward on
; inflection point at 
E) none of the above


A) no inflection points. concave up on

B) concave upward on



C) no inflection points. concave down on

D) concave downward on



E) none of the above
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7
Find all relative extrema of the function
. Use the Second Derivative Test where applicable.
A) relative minimum:
B) relative minimum:
C) relative maximum:
D) relative minimum:
E) relative maximum:

A) relative minimum:

B) relative minimum:

C) relative maximum:

D) relative minimum:

E) relative maximum:

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8
Determine the x-coordinate(s) of any relative extrema and inflection points of the function
.
A) relative minimum:
; inflection point: 
B) no relative extrema; inflection point:
C) relative minimum:
; no inflection points
D) no relative extrema; inflection point:
E) relative maximum:
inflection point: 

A) relative minimum:


B) no relative extrema; inflection point:

C) relative minimum:

D) no relative extrema; inflection point:

E) relative maximum:


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9
Determine the open intervals on which the graph of
is concave downward or concave upward.
A) concave downward on
B) concave upward on
; concave downward on 
C) concave upward on
; concave downward on 
D) concave upward on
E) concave downward on
; concave upward on 

A) concave downward on

B) concave upward on


C) concave upward on


D) concave upward on

E) concave downward on


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10
Find all points of inflection on the graph of the function
.
A)
B)
C)
D)
E)

A)

B)

C)

D)

E)

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11
Find the points of inflection and discuss the concavity of the function
on the interval
.
A) concave down on
; no points of inflection
B) concave downward on
; concave upward on
; inflection points at
and 
C) concave upward on
; concave downward on
; inflection points at
and 
D) concave up on
; no points of inflection
E) none of the above


A) concave down on

B) concave downward on




C) concave upward on




D) concave up on

E) none of the above
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12
Determine the open intervals on which the graph of the function
is concave upward or concave downward.
A) concave upward:
; concave downward: 
B) concave upward:
; concave downward: 
C) concave upward:
; concave downward: 
D) concave upward:
; concave downward: 
E) concave upward:
; concave downward: 

A) concave upward:


B) concave upward:


C) concave upward:


D) concave upward:


E) concave upward:


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13
Find all relative extrema of the function
. Use the Second Derivative Test where applicable.
A) relative max:
; no relative min
B) no relative max; no relative min
C) relative min:
; relative max: 
D) relative min:
; no relative max
E) relative min:
; relative max: 

A) relative max:

B) no relative max; no relative min
C) relative min:


D) relative min:

E) relative min:


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Unlock Deck
k this deck
14
Find all relative extrema of the function
. Use the Second Derivative Test where applicable.
A) relative max:
; no relative min
B) relative min:
; no relative max
C) relative min:
; no relative max
D) relative max:
; no relative min
E) no relative max or min

A) relative max:

B) relative min:

C) relative min:

D) relative max:

E) no relative max or min
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15
Find the points of inflection and discuss the concavity of the function
.
A) no inflection points; concave up on
B) no inflection points; concave down on
C) inflection point at x = 16; concave up on
D) inflection point at x = 0; concave up on
; concave down on 
E) inflection point at x = 16; concave down on

A) no inflection points; concave up on

B) no inflection points; concave down on

C) inflection point at x = 16; concave up on

D) inflection point at x = 0; concave up on


E) inflection point at x = 16; concave down on

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16
Find all relative extrema of the function
. Use the Second Derivative Test where applicable.
A) relative max: (1, -2); no relative min
B) no relative max or min
C) relative min: (0, -3); no relative max
D) relative max: (1, -2); relative min: (0, -3)
E) relative max: (0, -3); no relative min

A) relative max: (1, -2); no relative min
B) no relative max or min
C) relative min: (0, -3); no relative max
D) relative max: (1, -2); relative min: (0, -3)
E) relative max: (0, -3); no relative min
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17
Determine the open intervals on which the graph of the function
is concave upward or concave downward.
A) concave upward:
; concave downward: 
B) concave upward:
; concave downward: 
C) concave upward:
; concave downward: 
D) concave upward:
; concave downward: 
E) concave upward:
; concave downward: 

A) concave upward:


B) concave upward:


C) concave upward:


D) concave upward:


E) concave upward:


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18
Find the point of inflection of the graph of the function
on the interval
.
A)
B)
C)
D)
E)


A)

B)

C)

D)

E)

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19
Determine the open intervals on which the graph of
is concave downward or concave upward.
A) concave downward on
; concave upward on 
B) concave downward on
; concave upward on 
C) concave upward on
; concave downward on 
D) concave downward on
; concave upward on 
E) concave upward on
; concave downward on 

A) concave downward on


B) concave downward on


C) concave upward on


D) concave downward on


E) concave upward on


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20
Determine the open intervals on which the graph of
is concave downward or concave upward.
A) concave downward on
B) concave upward on
; concave downward on 
C) concave upward on
; concave downward on 
D) concave downward on
; concave upward on 
E) concave downward on
; concave upward on 

A) concave downward on

B) concave upward on


C) concave upward on


D) concave downward on


E) concave downward on


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21
Suppose the deflection D of a beam of length L is
where x is the distance from one end of the beam. Find the value of x that yields the maximum deflection.
A)
B)
C)
D)
E)

A)

B)

C)

D)

E)

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22
The graph of f is shown. Graph f, f' and f'' on the same set of coordinate axes. 
A)
B)
C)
D)
E) none of the above

A)

B)

C)

D)

E) none of the above
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23
Suppose a manufacturer has determined that the total cost C of operating a factory is
where x is the number of units produced. At what level of production will the average cost per unit be minimized? (The average cost per unit is C/x.)
A)
B)
C)
D)
E)

A)

B)

C)

D)

E)

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24
Find the cubic function of the form
where
and the coefficients
are real numbers, which satisfies the conditions given below. Relative maximum:
Relative minimum:
Inflection point: 
A)
B)
C)
D)
E)






A)

B)

C)

D)

E)

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25
The graph of f is shown. Graph f, f' and f'' on the same set of coordinate axes. 
A)
B)
C)
D)
E) none of the above

A)

B)

C)

D)

E) none of the above
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26
Determine the x-coordinate(s) of any relative extrema and inflection points of the function
.
A) relative minimum:
; no inflection points
B) relative maximum:
; inflection point: 
C) no relative maximum or minimum; inflection point:
D) no relative extrema or inflection points.
E) relative minimum:
; inflection point: 

A) relative minimum:

B) relative maximum:


C) no relative maximum or minimum; inflection point:

D) no relative extrema or inflection points.
E) relative minimum:


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