Question

Short Answer

24. Given the formula for the arithmetic sequence, an = 6 + (n - 1)3, give the first 4 terms of the
sequence.

Answer 1

9514 1404 393

Answer:

6, 9, 12, 15

Explanation:

Comparing the given formula to the formula for the general term of an arithmetic sequence, ...

an = a1 +d(n -1)

we see that a1 = 6 and d = 3. That is, the first term of the sequence is 6 and each term is 3 more than the last.

The first 4 terms are 6, 9, 12, 15.