Answer:
The distance between home and river is 2 miles. In still water a boat can cover 18 miles in 3 hours.
Unit rate of the boat is calculated as
[tex]\frac{18}{3}=6[/tex]
Unit rate of the boat is 6 miles per hour.
In the morning, a fisher man walks towards river and sits on the boat and moves in still water, then total distance covered by the fisher man is defined by the equation
[tex]y=2+6x[/tex]
