Question

Which of the following represents an arithmetic sequence?

5, -10, 20, -40

3, 1, 4, 2

2, 4, 8, 16

3, 5, 7, 9,

Answer 1

@Michele_Laino

Answer 2

which one is going up by the same number?

Answer 3

here's an example:
11,13,15
each is going up by 2

Answer 4

2,4,6,8

Answer 5

that's not one of your choices though

Answer 6

2,4,6,8,16

Answer 7

were's the 6 in the option?

Answer 8

where*

Answer 9

oops sorry drop the 6

Answer 10

so it can't be that choice

Answer 11

because the pattern is x2

Answer 12

3,5,7,9

Answer 13

correct
it's going up by 2

Answer 14

okay thank u