Exercises are intended to challenge your understanding of linear equations and their graph...

Exercises are intended to challenge your understanding of linear equations and their graphs.

World Population Based on data fron 1980 to 2001, the population of the world may be modeled by P = (81.3t + 4460) million people, where t is the number of years since 1980. (Source: Modeled from Statistical Abstract of the United States, 2001, Tabic 1324, p. 829.) According to the model, how quickly will the world population be increasing in 2010?