An outboard motor has an initial price of $3,200. A service contract costs $200 for the first year and increases $100 per year thereafter. The total cost of the outboard
motor (in dollars) after n years is given by C(n) = 3,200 + 250n +50n, where n 2 1. Complete parts (A) through (C). .
(A) Write an expression for the average cost per year, C(n), for n years.
čin = 3200 + 250 + 500
(B) Graph the average cost function found in part (A). Choose the correct graph below.
ОА
OB.
OC.
4,500
50041
(C) When is the average cost per year minimum? (This time is frequently referred to as the replacement time for this piece of equipment.)
The average cost per year is minimum after years.