Question

Which formula can be used to describe the sequence below?
-8, -5, -2, 1,4,

Answer 1

Explanation:

this is a arithmetic sequence the first term is : A1 = -8

the comon difference is d = -5-(-8) =-2-(-5) =1-(-2) = 4-1 =3

the formula can be used to describe this sequence is :

An =A1 +(n-1)d

An = -8 +3(n-1)

An = 3n -11

Answer 2

add by 3

Explanation:

-8+3=-5

-5+3=-2

-2+3=1

1+3=4