The following graph shows how immigration (in thousands) to the United States has varied from 1910 to 2010. The following chart shows how the percentage of eighth graders, tenth graders, and twelfth graders who have used marijuana in their lifetime has varied in recent years.

(a) Find the average annual rate of change in immigration from 1910 to 1960.
(b) Find the average annual rate of change in immigration from 1960 to 2010.
(c) Find the average annual rate of change in immigration from 1910 to 2010.
(d) Average your answers to parts (a) and (b), and compare the result with your answer from part (c). Will these always be equal for any two time periods?
(e) If the annual average rate of change for 1960–2010 continues, predict the number of immigrants in 2018. Compare your answer to the actual number of 1,096,611 immigrants.

Transcribed Image Text:

Immigration (thousands) 1800- 1600 1400 1200- 1000- 800 600- 400 200 1042 430 242 71, 249 265 373 524 1536 841 1043 0- 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020 Year