Jason is traveling by car from his home to his office. He has gone 3.5 miles so far. From this point on, he can cover 100 miles every 2 hours What the equation of a line that models the total miles traveled, $y$, in $x$ hours after this point?
A. $y=100 x+35$
B. $y=100 x-3.5$
C. $y=50 x+3.5$
D. $y=-50 x+3.5$