Question

Find the nth term for this sequence 15 12 9 6

Answer 1

3n

Explanation:

Answer 2

a_n=-3n+18

Explanation:

Arithmetic sequence formula: a_n=a_1+(n-1)d

a_n= nth term

a_1= 15

d= -3

a_n=15+(n-1)(-3)

-3n+18