Question

5. An arithmetic sequence is defined by:

a₁ = -8

an = an-1+4

What is the 7th term of the sequence?

Answer 1

Answer: 16

Explanation:

an = an-1+4 ==> change in every term is +4

1=1st term

7=7th term

-8+4*(7-1)=

-8+4*6=

-8+24=16