Name: 
 

Rate of Change



 1 

An astronaut drops a rock off the edge of a cliff on the Moon.  The distance, mc001-1.jpg, in meters, the rock travels after t seconds can be modeled by the function mc001-2.jpg.  What is the average speed, in meters per second, of the rock between 5 and 10 seconds after it was dropped?
a)
12
c)
60
b)
20
d)
80
 

 2 

The graph below shows the distance in miles, m, hiked from a camp in h hours.

mc002-1.jpg

Which hourly interval had the greatest rate of change?
a)
hour 0 to hour 1
c)
hour 2 to hour 3
b)
hour 1 to hour 2
d)
hour 3 to hour 4
 

 3 

The Jamison family kept a log of the distance they traveled during a trip, as represented by the graph below.

mc003-1.jpg

During which interval was their average speed the greatest?
a)
the first hour to the second hour
c)
the sixth hour to the eighth hour
b)
the second hour to the fourth hour
d)
the eighth hour to the tenth hour
 

 4 

Firing a piece of pottery in a kiln takes place at different temperatures for different amounts of time.  The graph below shows the temperatures in a kiln while firing a piece of pottery after the kiln is preheated to 200ºF.

mc004-1.jpg

During which time interval did the temperature in the kiln show the greatest average rate of change?
a)
0 to 1 hour
c)
2.5 hours to 5 hours
b)
1 hour to 1.5 hours
d)
5 hours to 8 hours
 

 5 

The table below shows the year and the number of households in a building that had high-speed broadband internet access.

mc005-1.jpg

For which interval of time was the average rate of change the smallest?
a)
2002 - 2004
c)
2004 - 2006
b)
2003 - 2005
d)
2005 - 2007
 

 6 

The table below shows the cost of mailing a postcard in different years.  During which time interval did the cost increase at the greatest average rate?

mc006-1.jpg
a)
1898-1971
c)
1985-2006
b)
1971-1985
d)
2006-2012
 

 7 

The table below shows the average diameter of a pupil in a person’s eye as he or she grows older.

mc007-1.jpg

What is the average rate of change, in millimeters per year, of a person’s pupil diameter from age 20 to age 80?
a)
2.4
c)
mc007-3.jpg
b)
0.04
d)
mc007-4.jpg
 

 8 

Joey enlarged a 3-inch by 5-inch photograph on a copy machine.  He enlarged it four times.  The table below shows the area of the photograph after each enlargement.

mc008-1.jpg

What is the average rate of change of the area from the original photograph to the fourth enlargement, to the nearest tenth?
a)
4.3
c)
5.4
b)
4.5
d)
6.0
 

 9 

Given the functions mc009-1.jpg, mc009-2.jpg, and mc009-3.jpg shown below:

mc009-4.jpg

mc009-5.jpg

mc009-6.jpg

The correct list of functions ordered from greatest to least by average rate of change over the interval mc009-7.jpg is
a)
mc009-12.jpg, mc009-13.jpg, mc009-14.jpg
c)
mc009-18.jpg, mc009-19.jpg, mc009-20.jpg
b)
mc009-15.jpg, mc009-16.jpg, mc009-17.jpg
d)
mc009-21.jpg, mc009-22.jpg, mc009-23.jpg
 



 
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