Compute the slope of the line through the given points, then graph the line and use to fin...

Compute the slope of the line through the given points, then graph the line and use to find two additional points on the line. Answers may vary.

The graph shown models the relationship between the volume of garbage that is dumped in a landfill and the number of commercial garbage trucks that enter the site. (a) Determine the slope of the line and interpret what the slope ratio means in this context and (b) estimate the number of trucks entering the site daily if 1000 m3 of garbage is dumped per day.