A driver starts on a 700-mile journey. The following graph shows the distance remaining in the journey after driving at a constant speed.

On the coordinate plane the horizontal axis is labeled "Time (hours)" and the vertical axis is labeled "Distance (miles)". The line begins at the point (0, 700), goes down and right, passes through the point (2, 600), passes through the point (4, 500), passes through the point (6, 400), and ends at the point (7, 350).

Using inductive reasoning, how many miles will remain in the trip after 8 hrs?
mi