Question

SOMEONE PLEASE HELP

Use the recursive formula to answer the question.

a1=12
an=an−1+4

What is the 7th term in the sequence?

Answer 1

The 7th term is

a7 = 36

Explanation:

a1=12

an=an−1+4

the given sequence shows that :

the first term is a1=12

and the common difference ”r” is = 4

then the general term of the sequence is :

an=a1+(n-1)r

then

an=12+(n-1)4

then

an=4n+8

therefore

a7=4(7)+8

= 28+8

=36