Solution:
Given that the cost of operating the boathouse is $2800, and $750 is spent each month for every boat.
Provided that there are n boats, we have
[tex]profit=revenue-cost[/tex]
where
[tex]\begin{gathered} profit=p \\ revenue=(900-750)n \\ cost=2800 \end{gathered}[/tex]
By substituting these values into the profit formula, we have
[tex]\begin{gathered} p=(900-750)n-2800 \\ =150n-2800 \\ \therefore \\ p=150n-2800 \end{gathered}[/tex]
Hence, the profit function i
