the first term of an arithmetic sequence is 5. the eleventh term is 125. what is the common difference of the arithemetic sequence?

The first term of an arithmetic sequence is 5. the eleventh term is 125. what is the common difference of the arithemetic sequence?
(1,5);(11,125)

Rate of change=change in y/change in x
=125-5/11-1=120/10=12

☆☆☆☆☆common difference of the arithemetic sequence is 12