The given function f(x)=50x+8 estimates the distance a train has traveled, in kilometers, from a station in a certain city x hours after crossing the city border. What is the best interpretation of 8 in this context?
Between the station and the city border the train traveled an estimated total distance of 8 kilometers.
A
Between the station and the city border the train traveled at an estimated speed of 8 kilometers per hour.
B
After crossing the city border the train traveled at an estimated speed of 8 kilometers per hour.
C
After crossing the city border the train traveled an estimated total distance of 8 kilometers.