Question

Given the explicit formula, find the first four terms:

an = -400(1/2)n-1

A.
-400, -300, -200, -100

B.
-400, -399.5, -399, -398.5

C.
-400, 200, -100, 50

D.
-400, -200, -100, -50

Answer 1

C

Explanation:

Try C

Answer 2

I thing that the answer is c