Concept explainers
Prison Population The graph showing the total number of prisoners in state and federal prisons for the years 1960 through 2012 is shown in the figure. There were 212,953 prisoners in 1960 and 1,570,397 in 2012.
a. What is the average rate of growth of the prison population from 1960 to 2012? Give the rate to the nearest integer.
b. What is the slope, to the nearest integer, of the line connecting the points satisfying the conditions above?
c. Use the slope from (b) and the 2012 point to write the equation of the secant line joining these two points on the curve.
d. Does the secant line from part (c) give a good model of the data shown in the graph?
(Source: U.S. Bureau of Justice Statistics)
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