# Section 1 -3 Functions Given by Graphs

Business

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Q 3Q 3

The graph of a function that is increasing at an increasing rate is increasing and concave up.

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Q 6Q 6

Choose the answer that best completes the following sentence.A graph that is increasing and concave up represents a function that is ...
A) increasing at an increasing rate
B) increasing at a decreasing rate
C) decreasing at a decreasing rate
D) decreasing at an increasing rate

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Q 7Q 7

Choose the answer that best completes the following sentence.A graph that is decreasing and concave up represents a function that is ...
A) increasing at an increasing rate
B) increasing at a decreasing rate
C) decreasing at a decreasing rate
D) decreasing at an increasing rate

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Q 8Q 8

Choose the answer that best completes the following sentence.A point of inflection occurs where...
A) concavity changes
B) concavity is at a maximum
C) the graph is increasing
D) the graph is bent

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Q 9Q 9

Below is a graph of a function .Find the value of .
A) 8
B) 2
C) 15.20
D) None of the above

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Q 10Q 10

Below is a graph of a function .Find the largest value of x so that .
A) 3
B) 2
C) 4
D) None of the above

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Q 11Q 11

Below is a graph of a function .Find the average rate of change in f from 1 to 3 .
A) 3
B) 2
C) 4
D) None of the above

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Q 12Q 12

Below is a graph of a function .Find the average rate of change in f from 4 to 10 .
A) 20
B) -5
C) -30
D) None of the above

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Q 13Q 13

Below is a graph of a function .Find the value of .
A) 10
B) 20.00
C) 50
D) None of the above

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Q 14Q 14

Below is a graph of a function .At what value of x does f reach its maximum value, and what is that value?
A) 50.00
B) maximum of 60 at
C) maximum of 2 at
D) None of the above

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Q 15Q 15

Below is a graph of a function .What is the limiting value for f?
A) 60
B) 20
C) 50
D) None of the above

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Q 16Q 16

You put a drink in the freezer to cool.You take it out of the freezer when it is cold.But you forget about the drink and leave it sitting on the kitchen counter.The graph below shows the temperature, in degrees, of the drink t minutes after the drink is placed in the freezer.What is the temperature in the kitchen?
A) 20 degrees
B) 60 degrees
C) 70 degrees
D) None of the above

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Q 17Q 17

Below is a graph of a function .Over what region(s) is the function increasing?
A) from 3 to 6
B) from 0 to 3
C) at
D) None of the above

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Q 18Q 18

Below is a graph of a function .What is the value of ?
A) 5
B) -5
C) 8
D) None of the above

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Q 19Q 19

Below is a graph of a function .Over what region(s) is the function decreasing?
A) from 0 to 1 and from 4 to 6
B) from 1 to 4
C) from -20 to 10
D) None of the above

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Q 20Q 20

Below is a graph of a function .Over what region(s) is the graph concave up?
A) at
B) from 0 to 3
C) from 3 to 6
D) None of the above

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Q 21Q 21

The graph below shows the value, in dollars, of a foreign currency t years after 2000. For what two dates between 2000 and 2020 would earn you the most money if you bought the foreign currency on the first date and sold on the second?
A) Buy in 2002 and sell in 2008
B) Buy in 2008 and sell the same year
C) Buy in 2005 and sell in 2008
D) None of the above

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Q 22Q 22

The graph below shows the value, in dollars, of a foreign currency t years after 2000. In what year from 2000 to 2020 did the value of the foreign currency reach its maximum, and what was that maximum value?
A) The maximum value of $1.80 occurred in 2008.
B) The maximum value of $1.20 occurred in 2005.
C) The maximum value of $1.40 occurred in 2002.
D) The maximum value of $0.90 occurred in 2020.

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Q 23Q 23

The graph below shows the blood-glucose levels, in milligrams per deciliter, as a function of hours since a meal was ingested.The three graphs are for a healthy person (labeled normal), a prediabetic, and a diabetic person.During the period shown on the graph, what is the shortest time since eating that glucose levels are the same for a healthy person and a prediabetic?
A) About 6 hours after eating
B) About 3 hours after eating
C) At about 1 hour after eating
D) None of the above

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Q 24Q 24

The graph below shows the blood-glucose levels, in milligrams per deciliter, as a function of hours since a meal was ingested.The three graphs are for a healthy person (labeled normal), a prediabetic, and a diabetic person.The graph indicates that regardless of diabetic condition, blood-glucose reaches a maximum concentration about how many hours after eating?
A) About 110 milligrams per deciliter
B) About 70 milligrams per deciliter
C) About 1 hour after eating
D) About 4.5 hours after eating

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Q 25Q 25

The graph below shows the atmospheric pressure, in millibars of mercury, as a function of altitude in meters.According to the graph, which of the following sentences best describes the relationship between pressure and altitude?
A) Pressure decreases with altitude, but at higher altitudes a small change in altitude makes relatively little difference in pressure.
B) Pressure decreases at an increasing rate as altitude increases.
C) Pressure is concave down with respect to altitude.
D) As altitude increases pressure does not change.

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Q 26Q 26

The graph below shows the atmospheric pressure P, in millibars of mercury, as a function of altitude A in meters.According to the graph, what is the approximate value of the solution for A of the equation ?
A) meters
B) meters
C) meters.
D) The equation has no solution.

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Q 27Q 27

The graph below shows the fundraising of the Republican National Committee, in millions of dollars, as a function of the date.During the period shown on the graph when was the minimum amount of funds raised, and what was that amount?
A) The Committee raised 10 million dollars in 1993.
B) The Committee raised 17 million dollars in 1995.
C) The Committee raised 12 million dollars in 1997.
D) The Committee raised 21 million dollars in 2009.

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Q 28Q 28

The graph below shows the fundraising of the Republican National Committee, in millions of dollars, as a function of the date.The graph indicates that there are two solutions d of the equation million.What two dates (approximately) correspond to these solutions?
A) About 2001 and 2009.
B) About 1995 and 2005
C) About 1993 and 2009
D) There is no solution.

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Q 29Q 29

The graph below shows the maximum angle above the horizon reached by the moon during the month of June.On what day does the smallest maximum angle occur, and what is that angle?
A) The smallest maximum angle of about 71 degrees occurs on June 29.
B) The smallest maximum angle occurs at the time of the new moon.
C) The smallest maximum angle of about 22 degrees occurs on June 15.
D) The smallest maximum angle of about 71 degrees occurs on June 2.

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Q 30Q 30

The graph below shows the maximum angle above the horizon reached by the moon during the month of June.What was the average rate of change in the maximum angle from June 8 to June 14?
A) -3.43 degrees per day
B) -16 degrees per day
C) -7 degrees per day
D) None of the above.

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Q 31Q 31

The graph below shows the growth rate G, in water fleas per day, of a population of water fleas as a function of the population size N.Calculate the average rate of change in G from 130 to 160 water fleas.
A) -0.07 water fleas per day per water flea.
B) 6 water fleas per day per water flea.
C) 30 water fleas per day per water flea.
D) None of the above.

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Q 32Q 32

The graph below shows the numbers, in thousands, of men and women of a given height in a population.This graph allows us to conclude that:
A) Women are taller than men.
B) The most common height for women is about 160 centimeters.
C) The most common height for men is about 170 centimeters.
D) There are fewer tall men than tall women.

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Q 33Q 33

The graph below shows the numbers, in thousands, of men and women of a given height in a population.What are the most common heights for men and for women?
A) The most common height for both men and women is about 170 centimeters.
B) The most common height for women is about 160 centimeters, and the most common height for men is about 177 centimeters.
C) The most common height for men is about 110 centimeters, and the most common height for women is about 120 centimeters.
D) None of the above.

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Q 34Q 34

Below is a graph of a function .At what value of x does the point of inflection occur?
A) at
B) at
C) at
D) None of the above

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Q 35Q 35

Which of the following stories best fits the graph below?
A) I left home walking to class but forgot my book.I went back home for the book and then went to math class.
B) I left home and went to math class.After class I returned home.
C) I left English class, walked home for lunch, then went to math class.
D) I went from English class to math class.After math I walked home.

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Q 36Q 36

Which of the following stories best fits the graph below?
A) I left home walking to class but forgot my book.I went back home for the book and then went to math class.
B) I left home and went to math class.After class I returned home.
C) I left English class, walked home for lunch, then went to math class.
D) I went from English class to math class.After math I walked home.

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Q 37Q 37

Which of the following stories best fits the graph below?
A) I left home walking to class but forgot my book.I went back home for the book and then went to math class.
B) I left home and went to math class.After class I returned home.
C) I left English class, walked home for lunch, then went to math class.
D) I went from English class to math class.After math I walked home.

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Multiple Choice

Q 38Q 38

Which of the following stories best fits the graph below?
A) I left home walking to class but forgot my book.I went back home for the book and then went to math class.
B) I left home and went to math class.After class I returned home.
C) I left English class, walked home for lunch, then went to math class.
D) I went from English class to math class.After math I walked home.

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Multiple Choice