Solve the Problem $\$ 2857$ In Year 0, the Initial Investment Year

Solve the problem.
-An investment is worth $\$ 2857$ in year 0, the initial investment year. By year 4 its value has increased to $\$ 3373$ . Let $y$ be the value of the investment in the year $x$ . Find and interpret the average rate of change in value per year.

A) - $\$ 129$ per year; the value of the investment decreases by $\$ 129$ per year during these years.
B) $\$ 2857$ per year; the value of the investment increases by $\$ 2857$ per year during these years.
C) $\$ 129$ per year; the value of the investment increases by $\$ 129$ per year during these years.
D) $\$ 3889$ per year; the value of the investment increases by $\$ 3889$ per year during these years.