Question

In the sequence, 8, 11, 14, 17,..., what is the common difference?

A. 8
B. 9
C. 6
D. 3

Answer 1

why don't you try finding the common difference.
what is the difference between 8 and 11?
what is the difference between 11 and 14
what is the difference between 14 and 17?

Answer 2

8 is smaller then 11
11 is smaller then 14
14 is greater then 17?

Answer 3

20. It's + 3 each time.

Answer 4

right, but when we say difference in mathematics, we mean the difference in magnitude.
for example the difference between 15 and 20 is 5. we say this because if you add 5 to 15, you get 20, so the difference between these two numbers is 5.

Answer 5

Your answer is 3. D.

Answer 6

OOOOH thanks i get now :)

Answer 7

so basically 11 is 3 numbers away from 8 and 14 is 3 numbers away from 11 and so on. so the difference is 3.

Answer 8

you are welcome :)