Question

Nth term of 12 16 20 24 28

Answer 1

Notice that the pattern of the data set is the previous term plus 4. This is an arithmetic sequence where the difference (d) is +4.

`a_(n)` = a₁ + d(n - 1) ; where a₁ is the first term, d is the difference, and n is the term.

`a_(n)` = 12 + 4(n - 1)

`a_(n)` = 12 + 4n - 4

`a_(n)` = 4n + 8