Question

The first four sequences are shown below 9,5,1,-3 which of the following functions best defines this sequence

Answer 1

Arithmetic sequence.

Explanation:

We have been given 9,5,1 and -3

We need to check what kind of sequence is this.

`d=a_2-a_1`

d is common difference we will check difference of consecutive terms.

`5-9=-4`

`1-5=-4`

`-3-1=-4`

We can see the difference between all the terms are same that is -4

So, this is an arithmetic sequence.

Arithmetic sequence is the sequence in which the difference between consecutive terms are same.