algebra

In 2000, 49% of the residents in a large city regularly used newspapers for getting news and this has decreased at an average rate of approximately 1.3% per year since then. Find a linear function in slope-intercept form that models this description. The function should model the percentage of residents, P(x), who regularly used the news outlet x years after 2000.

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  1. number of years ---- x

    P(x) = 49 - 1.3x
    or
    P(x) = -1.3x + 49 to make the slope - y-intercept form more obvious

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