recursive equation for 2,4,6,8

Answer 1

The recursive equation always has two parts. 1) where you start. So, in this case that is the first term is 2 or a₁ = 2. The second part tells you what to do to get to the next term. In this case you add 2 to get to the next term so that would be written as a_n+1 = a_n + 2

Answer 2

a₁ = 2, a_n = a_n-1 + 2 for n ≥ 2

Answer 3

Explanation in the video a_n = 2n or a_n= 2 + (n-1)*2