Arithmetic vs Geometric

Determine if the sequence is arithmetic or geometric:

10, 60, 110, 160, 210, ...

• arithmetic

• geometric

Determine if the sequence is arithmetic or geometric:

-5, 0, 5, 10, ...

• arithmetic

• geometric

Determine if the sequence is arithmetic or geometric:

3, 12, 48, 192, ...

• arithmetic

• geometric

What does every arithmetic sequence have?

• common ratio

• common difference

Determine the common difference in this arithmetic sequence

10, 22, 34, 46, ...

Determine the common ratio for this geometric sequence

2, 10, 50, 250, ...

Which of the following is a geometric sequence with a common ratio of 0.2?

• 150, 30, 6, 1.2, ...

• 2.2, 3.2, 4.2, 5.2, ...

• 1.2, 1.4, 1.6, 1.8, ...

• 3, 6, 12, 24, ...

Which formula would help you find the 22nd term in the sequence

3, 8, 13, 18, 23, ...

Given the formula for a specific list of numbers, what is the value of a₁?

a_n = 4.5 + (n - 1)2

• -1

• 2

• 4.5

• 6.5