Question

In 2014, County X had 783 miles of paved roads.Starting in 2015, the county has been building 8 miles ofnew paved roads each year. At this rate, if n is the numberof years after 2014, which of the following functions fgives the number of miles of paved road there will be inCounty X? (Assume that no paved roads go out ofservice.)A) f(n) = 8 + 783nB) f(n) = 2,014 + 783nC) f(n) = 783 + 8nD) f(n) = 2,014 + 8n

Answer 1

C

1) Gathering the data:

2014

X Country 783 miles

2015

X Country

8n

2) Since there were already 783 miles of paved road. We can write the function as:

F(n) =8n +783