Quiz about Arithmetic or Geometric Sequences

Question 1

Is this sequence arithmetic, geometric, or neither?
{26, 22, 18, 14, ...}

Accepted Answer

Arithmetic

Answer

Geometric

Answer

Neither

Question 2

Is this sequence Arithmetic, Geometric, or Neither?
{14, 22, 30, 38, .. }

Accepted Answer

Arithmetic

Answer

Geometric

Answer

Neither

Question 3

What is the common ratio of this sequence?
{2, 10, 50, 250, ... }

Accepted Answer

5

Answer

1,250

Answer

10

Answer

50

Question 4

What is the common difference in this sequence?
{48, 32, 16, 0, ... }

Accepted Answer

-16

Answer

1/2

Answer

2

Answer

-8

Question 5

What is the common ratio in this sequence?
{96, 48, 24, 12, ... }

Accepted Answer

1/2

Answer

2

Answer

12

Answer

24

Question 6

Which lists four consecutive terms of an arithmetic sequence?

Accepted Answer

3, 10, 17, 24, ...

Answer

1, 4, 9, 16, ...

Answer

1, 2, 4, 8, ...

Answer

-5, 6, 10, 13, ...

Question 7

What kind of sequence is illustrated below?
400, 200, 100, 50, 25, ...

Accepted Answer

Geometric

Answer

Arithmetic

Answer

Neither

Question 8

Which kind of sequence has a common difference?

Accepted Answer

Arithmetic

Answer

Geometric

Question 9

What is the common ratio of the geometric sequence below?
5, 25, 125, 625...

Accepted Answer

5

Answer

25

Answer

20

Answer

4

Question 10

What is the common difference of the arithmetic sequence below?
-6, -1, 4, 9...

Accepted Answer

5

Answer

-5

Answer

-6

Answer

1/5

Question 11

What is the common ratio for the sequence:
28, 14, 7, 3.5...

Accepted Answer

1/2

Answer

2

Answer

-14

Answer

-7

Question 12

What is the common difference:
-2, -11, -20, -29...

Accepted Answer

-9

Answer

Every Number

Answer

9

Answer

-2

Question 13

What are the first 4 terms of an arithmetic sequence with a common difference of (-6) if the first term is 76?

Accepted Answer

76, 70, 64, 58

Answer

76, 82, 88, 94

Answer

70, 64, 58, 52

Answer

82, 88, 94, 100

Question 14

Given the sequence 4, 11, 18, 25...... what is a₃ ?

Accepted Answer

18

Answer

4

Answer

11

Answer

25

Question 15

Write a recursive formula for the following sequence: 10, 5, 0, -5,...

Accepted Answer

a₁= 10

a_n= a_n-1 - 5

Answer

a₁= 10

a_n= a_n-1 + 5

Answer

a₁= 10

a_n= a_n (5)

Answer

a₁= 10

a_n= a_n-1 (5)

Question 16

What is the common ratio of the sequence: 16, -8 , 4, -2...

Accepted Answer

$$-\frac{1}{2}$$

Answer

$$\frac{1}{2}$$

Answer

$$2$$

Answer

$$-2$$

Question 17

Write a recursive formula for the following sequence: 16,8, 4, 2,...

Accepted Answer

a₁=16

a_n=a_n-1 (1/2)

Answer

a₁=16

a_n=a_n-1 (2)

Answer

a₁=16

a_n=a_n-1 + (1/2)

Answer

a₁=16

a_n=a_{n-1 +} (2)

Question 18

Find the 35th term in the arithmetic sequence: -10, -14, -18, -22, ...

Accepted Answer

-146

Answer

-216

Answer

-148

Answer

-150

Arithmetic or Geometric Sequences

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