Question

Find the common difference between the terms of the following arithmetic sequence.

-5, -1, 3, 7, 11, ...

Answer 1

4 is added to each number so the values go up.

Hope that helped :)

Answer 2

The sequence: n+4

Explanation:

in order to calculate the difference you just have t withdraw from the second term the first term, or use subsequent terms in order to do this, in this case we just have to pick two values, we will use 11 and 7, 11 is the second and 7 is the first:

11-7=4

If the difference between the other subsequent numbers is also four that means that the function is n+4.