Question

Complete the recursive formula of the arithmetic sequence −5,−25,−45,−65,...

Answer 1

Answer:

a

n

=

−

20

n

+

15

an=-20n+15

Step-by-step explanation:

Use a Formula

Answer 2

The recursive formula is

a[1] = -5

a[n] = a[n-1] - 20

The recursive part is the last equation.