A sequenceis $\left\{ a _ { n } \right\}$ defined recursively by the equation $a _ { n } = 0.5 \left( a _ { n - 1 } + a _ { n - 2 } \right)$ for $n \geq 3$ where $a _ { 1 } = 14 , a _ { 2 } = 14$.
Use your calculator to guess the limit of the sequence. Select the correct answer.
A) 6
B) 14
C) 26
D) 17
E) 15

Question

Quizplus · Accepted Answer

The sequence is defined such that each term is the average of the two preceding terms. Since both $a_1$ and $a_2$ are 14, the sequence remains constant at 14. Thus, the limit is 14.

A Sequenceis {an}\left\{ a _ { n } \right\}{an​} Defined Recursively by the Equation

A Sequenceis $\left\{ a _ { n } \right\}$ Defined Recursively by the Equation