Given:
and
where
.
To find:
The explicit formula for the given recursive formula.
Solution:
We know that recursive formula of an AP is:

Where, d is the common difference.
We have,

Here, d=9.
The first term of the AP is
.
The explicit formula for an AP is:

Substituting
and
, we get



Therefore, the required explicit formula for the given sequence is
.
First combine like terms:
14d+-2d=12d
Then do -84 divided by 12 = -7
D= -7
Answer:
- 1
Step-by-step explanation:
Slope of the line

I believe it’s C, hopefully this helps !!