Question

Describe the relationship between the terms in the sequence 9,7,5,3,.... using two different rules that use integers.

Answer 1

Answer:9,7,5,3,”1”

Step by step exclamation:

So it’s subtracting by two. 9-2 = 7!! And it keeps going on until you get the answer!!

Answer 2

First rule:

`a_(0) = 9`

`a_(n+1) = a_(n)-2`

Second rule:

`a_(n) = 9-2n` for n = 0,1,2,...

Explanation:

First rule:

The first term of the sequence is 9, and for obtaining the next term you subtract 2, then:

`a_(0) = 9`

`a_(n+1) = a_(n)-2`

Second rule:

`a_(n) = 9-2n` for n = 0,1,2,...