Question

Select the first five terms in the arithmetic sequence an = 8n, starting with n = 1.

Answer 1

So the difference is 8, because if you plug in 1 2 and 3 for n, you would get 8 16 and 24.

\(\Huge\color{blue}{ \bf a_{n-1}+8=a_n }\) this is a recursive formula, that is translated to the following words.

in order to get the next term, add 8 to the term before it.

So your numbers would be

\(\Huge\color{blue}{ \sf 8,16,24,32,40 }\)