Question

Sequences: Is it arithmetic, geometric or neither
\( a_n = a_{n-1} * -4 \)
\( a_1 = 3 \)

To me, it looks geometric and should be in the form of

\( a_n = 3 * -4^{n-1} \)
\( a_1 = 3 \)

Is this correct?

Answer 1

@peachpi

Answer 2

looks good, but put the -4 in parentheses

Answer 3

Ok thank you.

Answer 4

no problem