Question

Find an explicit rule for the nth term of the sequence.

-4, -8, -16, -32, ...

Answer 1

You came up with the answer?

Answer 2

First you need to realize it is exponential and that it is doubling, also notice it is always negative

Answer 3

and that it starts at 4

Answer 4

so, (-1)(4*2^n)

Answer 5

hope that helps, but I assume you already came up with the answer