Question

Nth term to 4 1 -2 -5 -8

Answer 1

4

4 - 3 = 1

1 - 3 = -2

-2 - 3 = -5

-5 - 3 = -8

It's the arithmetic sequence.

$a_n=a_1+(n-1)d$

$a_1=4,\ d=-3$

substitute

$a_n=4+(n-1)(-3)=4-3n+3=-3n+7$

Answer: $a_n=-3n+7$