Answer:
nth term = 19 - 4(n - 1).
Step-by-step explanation:
This is an arithmetic sequence and the nth term =
a1 + d(n - 1) where a1 = first term and d = the common difference.
Here d = -4 and the first term ( working backwards) is 11 + 2(4) = 19.
So the answer is nth term = 19 - 4(n - 1).
