Question

Identify the type of sequence shown in the table below and select the appropriate response.


n f(n)
1 12
2 −36
3 108
4 −324
5 972

Answer 1

Arithmetic sequence; common difference is −48
Arithmetic sequence; common difference is 144
Geometric sequence; common ratio is −3
Geometric sequence; common ratio is 3

Answer 2

first find the pattern in the values of f(n)

to get from 12 to -36, what number do we need to multiply?

Answer 3

12*-3

Answer 4

good! so our common ratio is -3

Answer 5

ok

Answer 6

so C?

Answer 7

right

Answer 8

thx alot