Determine if the sequence is arithmetic. If it is, find the common difference. 1) 35, 32, 29, 26, ... 2) - 3, - 23, - 43, - 63, ... 3) - 34, - 64, - 94, - 124, ... 4) - 30, - 40, - 50, - 60, ... 5) - 7, - 9, - 11, - 13, ... 6) 9, 14, 19, 24, ...

Question

Shyla Huynh

Mathematics

20 May, 13:00

Determine if the sequence is arithmetic. If it is, find the common difference. 1) 35, 32, 29, 26, ... 2) - 3, - 23, - 43, - 63, ... 3) - 34, - 64, - 94, - 124, ... 4) - 30, - 40, - 50, - 60, ... 5) - 7, - 9, - 11, - 13, ... 6) 9, 14, 19, 24, ...

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Paddy · Answer 1

1) Yes, it is arithmetic, the common difference is - 3. To find this, subtract any number from the number after it.

32 - 35 = - 3

2) yes, it is arithmetic, the common difference is - 20. To find this, subtract any number from the number after it.

-23 - - 3 = - 20

3) yes, it is arithmetic, the common difference is - 30. To find this, subtract any number from the number after it.

-64 - - 34 = - 30

4) yes, it is arithmetic, the common difference is - 10. To find this, subtract any number from the number after it.

-40 - - 30 = - 10

yes, it is arithmetic, the common difference is - 2. To find this, subtract any number from the number after it.

-9 - - 7 = - 2

yes, it is arithmetic, the common difference is 5. To find this, subtract any number from the number after it.

14 - 9 = 5