Question

Write the recursive formula for the geometric sequence.

Answer 1

\[a _{1} = -2, a _{2} = 8, a _{3} = -32\]

Answer 2

my choices,
\[a _{n} = -4 + a _{n-1}\]
\[a _{n} = -2 + a _{n-1}\]
\[a _{n} = -2 \times a _{n-1}\]
\[a _{n} = -4 \times a _{n-1}\]