What is the nth term rule for this arithmetic sequence?
Check the final answer first, then review the worked steps.
Step-by-step solution
The common difference is 4. The first term is -13. The nth term rule is $a_n = a_1 + (n-1)d$, so $a_n = -13 + (n-1)4 = -13 + 4n - 4 = 4n - 17$.
Answer
$4n-17$