number of years ---- x
P(x) = 49 - 1.3x
or
P(x) = -1.3x + 49 to make the slope - y-intercept form more obvious
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.
1 answer
1 answer