Arithmetic and Geometric Sequences Practice Test

Front

Arithmetic, geometric, or neither? 4, 9, 14, 19, ...

Back

Arithmetic

Front

Arithmetic, geometric, or neither? 100, 50, 25, 12.5, ...

Back

Geometric

Front

Find the common difference: 25, 13, 1, -11, ...

Back

-12

Front

Find the common ratio: 2, 8, 32, 128, ...

Back

4

Front

Find the next term: 100, 65, 30, -5...

Back

-40

Front

Create the formula for the geometric sequence: -4, -16, -64, -256...

Back

a_n = -4(4)^n-1

Front

What is the formula for the sequence: 11, 22, 44, 88...

Back

a_n = 11(2)^n-1

Front

First three terms of the sequence defined by a_n = 7 + (n - 1)5

Back

7, 12, 17

Front

What is the 8th term in the sequence below?
3, 9, 27, 81, ...

Back

6,561

Front

Find a₅ in the sequence: a_n = 5 ⋅ 2^(n-1) 

Back

a₅ = 80