How do I find the common difference of the arithmetic sequence 5, 9, 13, 17,...?

2 Answers
May 17, 2018

Answer:

4n+1

Explanation:

Each term increases by 4

Something to do with the four times table

4 8 12 16

You have to add one o each term so the rule is 4n+1

May 18, 2018

Answer:

The common difference is #4#.

Explanation:

The common difference is the difference between two consecutive terms in a sequence. To find it, we just need to do simple subtraction.

#9-5=4#
#13-9=4#
#17-13=4#
etc.

Each time, we get #4#. There is a difference of #4# between each consecutive number in the sequence. Therefore, the common difference is #4#.