Question

Which recursive formula can be used to represent the sequence 2,6,10,14,18,...??? Help ASAP!!!!!

Answer 1

Answer:

The first term = 2

a1 = 2

a_n=a_{n-1}+4

Step-by-step explanation:

Answer 2

We have the sequence 2, 6, 10, 14, 18, ... Always 4 being added, so we can say:

The first term is 2. The added is 4, so,

a1 = 2

$a_n=a_{n-1}+4$

Prove:

$a_2=a_{2-1}+4 => a_2=a_1+4=>a_2=2+4=6$