In his motorboat, bill ruhberg travels upstream at top speed to his favorite fishing spot, a distance of 270 mi, in 5 hr. returning, he finds that the trip downstream, still at top speed, takes only 4.5 hr.
find the rate of bill's boat and the speed of the current.
let x = the rate of the boat in still water and y = the rate of the current.

The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)