Question

What is the explicit formula for this sequence?
-5, - 3, -1, 1, 3, ...

Answer 1

`a_n = -5 +(n-1)*2`

Explanation:

Step 1: Determine the variables

Initial number is -5

Increments of +2

Step 2: Create an explicit formula

`a_n = initial+(n-1)*increment`

`a_n = -5 +(n-1)*2`

Answer:
`a_n = -5 +(n-1)*2`