A group of friends chartered a deep-sea fishing boat out of Destin, FL. The graph below represents the total cost, in dollars, of the trip as a function of the number of people going.
The group is trying to determine what the price difference would be per passenger if 10 of them go on the trip versus if 16 of them go on the trip. What is the difference in price per passenger for a group of 16 versus a group of 10?
a.) $46.25
b.) $36.25
c.) $56.25
d.) $26.25