Question

determine whether the sequence is an arithmetic sequence. justify your reasoning. 15, 13, 11, 9, ... this sequence select choice between its terms. this select choice an arithmetic sequence.

Explanation:

Step1: Calculate first term difference

$13 - 15 = -2$

Step2: Calculate second term difference

$11 - 13 = -2$

Step3: Calculate third term difference

$9 - 11 = -2$

Step4: Verify constant difference

All consecutive term differences are equal.

Answer:

This sequence has a common difference of -2 between its terms. This is an arithmetic sequence.