A drawbridge in Jacksonville,FL, allows an average of 22 boats per day to pass.
rate of change per day is 22
So equation becomes y = 22x
Here x represents the number of days
y represents the number of boats that has passed
The point (4,88) means x=4 and y = 88
x= 4 means 4 days
y = 88 means 88 boats passed
So after 4 days , 88 boats passed under the bridge.