Marlene wrote an arithmetic sequence where
a
1
=
8
and the common difference is
−
3
.
What is a rule for the nth term of this sequence?
The rule for the nth term of this arithmetic sequence can be defined as:
a_n = a_1 + (n-1)d
where a_n is the nth term of the sequence, a_1 is the first term (8 in this case), d is the common difference (-3 in this case), and n is the position of the term in the sequence.