Question

Rick has $1100 in the bank and is feeling pretty rich! He takes out $60 the first week ad continues to take out $60 every week. What equation will model the amount of money he has in the bank in any given week?




Week


0


1


2


3


4


5


6


7


8




$ in the bank


1100


1040


980


920


860


800


740


680


620

Answer 1

a=1100,d=60\[a _{n}=1100+(n-1)(-60)\]

Answer 2

the general term can be written as
\[a _{n-1}=1100+(n-1)(-60)\]