Question

What is the 8th term of the geometric sequence 1, –4, 16, …?

Answer 1

-64, 256, -1024, 4096, -16384

Answer 2

First find the formula for the nth term and then plug in 8
\[(-1)^{n+1}4^{n-1}\]

Answer 3

was my answer wrong?

Answer 4

No. Try plugging in 8 in my formula :)

Answer 5

so my answer is right?

Answer 6

Yes, it is.

Answer 7

lol ok just checking