Question

Any one help thx I'm just stuck on this​

Answer 1

A) 9 => 6 => 3 => 0 => -3 => -6

B) Using Formula

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

=>
`a_(n ) = 9+3(n-1)`

=>
`a_(n)= 9+3n-3\\a_(n) = 3n+6`

Answer:
`a_(n )= 3n+6`