Question

Write the explicit formula that represents the geometric sequence -2, 8, -32, 128

Answer 1

http://www.algebralab.org/lessons/lesson.aspx?file=algebra_geoseq.xml Try this.

Answer 2

And This http://www.virtualnerd.com/algebra-2/sequences-series/geometric/geometric-sequences/geometric-sequence-nth-term-formula

Answer 3

Anndddd This https://www.khanacademy.org/math/precalculus/seq_induction/precalc-geometric-sequences/v/converting-an-explicit-function-to-a-recursive-function

Answer 4

C: