Question

Sequence 1: –10, 20, – 40, 80, ...
Sequence 2: 15, – 5, – 25, – 45, ...
Which of the following statements are true regarding Sequence 1 and Sequence 2.

Answer 1

is it arithmetic, or geographic?? thats what im trying to figure out.

Answer 2

or both ._.

Answer 3

which ones, arithmetic and which one is geographic -.-

Answer 4

L:ook at your sequence 1: Note that the common ratio is -2, like the next term in you sequence would be -160 What does that tell you? The fact you have a common multiple (-2) between the adjacent sequence members?

Answer 5

oopss..i meant to say, geometric. ._.

Answer 6

not geographic xD

Answer 7

The 2nd sequence, you are adding a -25 to each term to get the next term, in the problem you have the next term is -65. Since there is a common difference between each term, what kind of sequence is this:?

Answer 8

Yes first sequence is geometric.