Question

In​ 2000, 49 %49% of the residents in a large city regularly used newspapers for getting news and this has decreased at an average rate of approximately 1.1 %1.1% per year since then. Find a linear function in​ slope-intercept form that models this description. The function should model the percentage of​ residents, Upper P (x )comma(x), who regularly use the news outlet x years after 2000?

Answer 1

P(x) = -1.1x +49

Explanation:

You are given the percentage in 2000 (for x=0) as 49, and told that its rate of change is -1.1 percent per year. So, with a slope of -1.1 and an intercept of 49, the slope-intercept form of the linear equation becomes ...

P(x) = -1.1x +49

_____

The slope-intercept form for slope m and y-intercept b is ...

y = mx + b