This is an arithmetic sequence since there is a common difference between each term. In this case, adding 4" role="presentation" style="outline: 0px; display: inline-block; line-height: 0; overflow-wrap: normal; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">4 to the previous term in the sequence gives the next term. In other words, an=a1+d(n-1)" role="presentation" style="outline: 0px; display: inline-block; line-height: 0; overflow-wrap: normal; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">an=a1+d(n−1).
Arithmetic Sequence: d=4" role="presentation" style="outline: 0px; display: inline-block; line-height: 0; overflow-wrap: normal; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; margin: 0px; padding: 1px 0px; position: relative;">d=4