For the following geometric sequence find the recursive formula and the 5th term in the sequence. In your final answer, include all of your work.

{-4, 12, -36, ...}

1 answer

https://www.mathsisfun.com/algebra/sequences-sums-geometric.html

r - -3
a = -4

Xn = Xn-1 * -3 recursive

Xn = -4 (-3)^(n-1) general

= -4 , -4*-3, 12(-3) , -36 * -3