wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Sequences Review

Total questions: 7

Worksheet time: 2hrs 45mins

Name
Class
Date
1.

Is the following sequence arithmetic or geometric?

 125, 25, 5, 15, ...125,\ 25,\ 5,\ \frac{1}{5},\ ...  

a)

Arithmetic Sequence

b)

Geometric Sequence

2.

A sequence is defined by the explicit formula  an=3n1a_n=3n-1  .  What is the 8th term of this sequence?

(a)  

3.

 A sequence is defined by the recursive formula below.

 a1=3a_1=3  
 an=2a(n1)a_n=2a_{\left(n-1\right)}  

What are the first three terms of this sequence?

a)

2, 4, 8

b)

3, 6, 12

c)

6, 12, 24

d)

3, 5, 7

4.

What is the explicit formula of the given sequence?

 5, 1, 3, 7, ...5,\ 1,\ -3,\ -7,\ ...  

a)

 an=4n+5a_n=-4n+5  

b)

 an=4n  5a_n=4n\ -\ 5  

c)

 an=4n+9a_n=-4n+9  

d)

 an=5n  4a_n=5n\ -\ 4  

5.

What is the explicit formula of the sequence given below?

 18, 12, 2, 8, 32, ...\frac{1}{8},\ \frac{1}{2},\ 2,\ 8,\ 32,\ ...  

a)

 an=18(4)(n1)a_n=\frac{1}{8}\left(4\right)^{\left(n-1\right)}  

b)

 an=4(18)(n1)a_n=4\left(\frac{1}{8}\right)^{\left(n-1\right)}  

c)

 an=4(12)(n1)a_n=4\left(\frac{1}{2}\right)^{\left(n-1\right)}  

d)

 an=32(14)(n1)a_n=32\left(\frac{1}{4}\right)^{\left(n-1\right)}  

6.

What is the next term in the following sequence?

 4, 8, 16, 32, ...4,\ 8,\ 16,\ 32,\ ...  

(a)  

7.

In an arithmetic sequence, a3 = 4, a4 = 12, and a5 = 20. What is the explicit formula for this sequence?

a)

an=8n+4a_n=8n+4

b)

an=8n20a_n=8n-20

c)

an=8n12a_n=8n-12

d)

an=12n+8a_n=-12n+8