Question

Given the sequence: $$4,\,12,\,20,\,28,...$$, write an explicit formula for the sequence and use it to find the $$28$$th term.

Accepted Answer

$${a_n} = 8n - 4;\;{a_{28}} = 220$$

Answer

$${a_n} = 8n - 4;\;{a_{28}} = 228$$

Answer

$${a_n} = {a_{n - 1}} + 8;\;{a_{28}} = 220$$

Answer

$${a_n} = {a_{n - 1}} + 8;\;{a_{28}} = 216$$

Question 18 - Mathematics Practice Test for the HiSET Test