Cooldown 12/20
The graph below represents the population of a city as a function of time. Use this graph to answer
questions 1, 2 and 3
population in thousands
50
40
30
20
10
1900 1920
1940 1960 1980
year
2000
1. What is the average rate of change of the population of the city from 1930 to 1950?
Show your work!
2. Is the average rate of change from 1970 to 1980 positive, negative, or zero? Explain
how you know.
2
I