Question

Write a recursive rule and and an explicit rule for the arithmetric sequence described by the table.

Answer 1

recursive rule:
formula- $a_{n} + a_{1} +(n-1)d$
So the rule would be $a_{n} =60+(5-1)20$

explicit rule: 
formula- f(n)=f(1)+d(n-1)
So the rule would be f(60)=F(60)+20(5-1)