The bar graph shows that as costs changed over the decades, Americans devoted less of their budget to groceries and more to health care.
Source: Time, October 10, 2011
In Exercises, find a linear function in slope-intercept form that models the given description. Each function should model the percentage of total spending, p(x), by Americans x years after 1950.
In 1950, Americans spent 3% of their budget on health care. This has increased at an average rate of approximately 0.22% per year since then.
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