Finding the Nth Term Arithmetic Sequence

The first term of a sequence is 25 and the 16th term is 130. What is the common difference?

Which of the following is the correct formula in finding the nth term of an arithmetic sequence?

• a_n = a₁ + (n - 1)d

• a_n = a₁ + (n + 1)d

• a_n = a₁ - (n - 1)d

• a_n = a₁ +- (n + 1)d

If the sequence 4, 8, 12, 16 continues, what will be the 7^th term?

• 24

• 28

• 32

• 36

Find the 10^th term in the sequence that starts with 1 and has a common difference of 3.

• 28

• 25

• 24

• 26

If the sequence 6, 11, 16, 21 continues, what will be the 9^th term?

Which of the following is an example of an arithmetic sequence?

• 4, 8, 16, 32, 64

• 1, 2, 4, 7, 11

• 15, 13, 11, 9, 7

• 3, 6, 12, 24, 48

In the sequence 9, 18, 27, 36 and so on, what is the common difference?

• 5

• 7

• 9

• 11

Determine the next term in the sequence 20, 8, -4, ...

What is the common difference in the sequence 6b, 9b, 12b, 15b?

The difference between two terms in an arithmetic sequence is called ___________________.

• Formula

• Common Ratio

• Common Difference

• Common Factor