J is driving to Woods. The graph representing his distance d from Woods in miles and the number of hours h he drives has a slope 50 and h-intercept 800. What is J's average speed and how far from Woods was J at the start of the trip?
Looks like a "trick problem" to me... I'll take a wild stab here... :-)
If we make the vertical (y) axis be h (time in hours), and the horizontal (x) axis be d (distance in miles), then the h-intercept of 800 would be when d=0, presumably J's initial distance from Woods. Therefore, J was 800 miles from Woods at the start of his/her trip.
If we consider that the slope is miles/hours, then 50mph would be J's average speed.