Question

PLZ HELP!!
Is this sequence arithmetic?
1, -7, -14, -21, …

Answer 1

check common difference

Answer 2

A sequence is arithmetic if each term is getting added or subtracted by a contant term.

Answer 3

For example

Answer 4

for common diff. d=any term - term jast before it

Answer 5

okay i just checked the difference and its not the same so i don't think its an arithmetic sequence
am i right?

Answer 6

yes

Answer 7

ok thank you

Answer 8

Good job :)