Find recursive and explicit formula for -40 -36 -32 -28

2 answers

Tn = -44+4n

T1 = -40
Tn = T(n-1)+4
As an after-thought .....

Tn = T(n-1) + 4 , T1 = -40 , n > 1

In the recursive notation, the initial value has to be included or else you can't begin your sequence.