Question

(3)What is the explicit rule for the sequence?

10.5, 9, 7.5, 6, 4.5, 3, ...

Answer 1

d

Explanation:

\a^_{n}=10.5+(n-1)(9-10.5)

=10.5+(n-1)(-1.5)

=10.5-1.5n+1.5

=12-1.5 n

Answer 2

B) an =12.5-1.5n

Explanation: