Solve the Problem. -The Polynomial Function Represents the Yearly Income (Or Loss)

Multiple Choice

Solve the problem.
-The polynomial function represents the yearly income (or loss) from a real estate investment, where t is time in years. After how many years does income begin to decline? Round to the nearest tenth of a
Year, if necessary.

A) 16 years
B) 10.7 years
C) 7 years
D) 8 years