what is the recursive rule for the sequence -7.4, -21.2, -35, -48.8, -62.6
an=an-1+13.8
an=an+1+13.8
an=an+1-13.8 <-- or D
an=an-1-13.8 <-- or C
4 answers
each term is calculated using the previous term, not the next one!
oohh!! Thanks Steve.
- 21.2 - ( - 7.4 ) = - 21.2 + 7.4 = - 13.8
- 35 - ( - 21.2 ) = - 35 + 21.2 = - 13.8
- 48.8 - ( - 35 ) = - 48.8 + 35 = - 13.8
- 62.6 - ( - 48.8 ) = - 62.6 + 48 = - 13.8
an = a(n-1)- 13.8
- 35 - ( - 21.2 ) = - 35 + 21.2 = - 13.8
- 48.8 - ( - 35 ) = - 48.8 + 35 = - 13.8
- 62.6 - ( - 48.8 ) = - 62.6 + 48 = - 13.8
an = a(n-1)- 13.8
Thanks!
1 answer