Question

B(1) = -500
b(n) = b(n − 1) 4/5
What is the 3rd term in the sequence?

Answer 1

it’s actually -320

Explanation:

Answer 2

-800

Explanation:

First term, B(1) = -500

nth term, b(n) = b(n - 1) 4/5

comparing with the arithmetic progression equation

T(n) = a(n - 1)d

a = b(1) = b

d = 4/5

Third term = b(3)

n = 3

b(3) = -500( 3 - 1) * 4/5

b(3) = -500(2)*4/5

b(3) = -800