What type of sequence is shown below 3, 6, 9, 12, 15 and 1,3,9,27,81 The first sequence has a common The second sequence has a common

Answer 1

The first has a common difference of 3, the second has a common ratio of 3. The first is called an arithmetic sequence and the 2nd is called a geometric sequence. A sequence should be defined by giving a formula for the nth term.. For the arithmetic sequence it is 3n and for the geometric it is 3^n.