Question

Find the common difference for the given sequence. Type a numerical answer in the space provided. Do not include spaces in your answer. If necessary, use the / key to represent a fraction bar. 56, 49, 42, 35, ...

Answer 1

The answer is -7....

Answer 2

Answer: -7

Explanation:

• The common difference of an Arithmetic progression is the difference between any two consecutive terms.

i.e. for sequence
`a_1, a_2, a_3 ,.....`

Common difference =
`d=a_2-a_1=a_3-a_2=a_4-a_4`

The given sequence : 56, 49, 42, 35, ...

Then , Common difference =
`49-56=-7`

Hence, the common difference for the given sequence. =-7