Drug Users According to the Substance Abuse and Mental Health Service Administration’s 2008 National Survey on Drug Use and Health, an estimated 117,325,000 Americans 12 years and older had used an illicit drug at least once in their lifetime. In 2003, the number was 110,205,000.
a. Find the slope of the line connecting the points (2003, 110.205) and (2008, 117.325).
b. Find the average annual rate of change in number of drug users between 2003 and 2008.
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