SEQUENCES+NTH TERM

Question 1

3, 7, 11, 15, 19
What is the rule to this sequence?
How so?

Answer 1

4n-1
n= the 1 above 3, 2 above 7, 3 above 11, 4 above 15, 5 above 19
As we are growing up by 4, reference the 4x table
since 4 will x N, pick any n
Let’s do n=4
So 4x4=16
We would then do the -1 to make the number match the sequence?

Question 2

What is the rule for the sequence:
2, 5, 8, 11, 14

Answer 2

3n-1
E.G:
(3xn(2) =6
6-1=5, 5 on sequence

Question 3

What is the rule for the sequence:
8, 19, 30, 41, 52

Answer 3

11n-3

Question 4

What is the rule for the sequence:
2, 14, 26, 38, 50?

Answer 4

12n-10