Unit Review--Arithmetic and Geometric Sequences

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

• Arithmetic
• Geometric
• Neither

Tags

CCSS.HSF.BF.A.2

Is this sequence Arithmetic, Geometric, or Neither?
{2, 9, 7, 14, 12, 19, ... }

• Arithmetic
• Geometric
• Neither

Tags

CCSS.HSF.BF.A.2

Create the explicit formula for the sequence:
2, 8, 14, ...
(Hint:  Write your formula and then simplify it.)

• a_n=2+6n
• a_n=-6+6n
• a_n=6n-4
• a_n=4-6n

Tags

CCSS.HSF.BF.A.2

Find the 32nd term of this sequence.
34, 37, 40, 43, ...

• 32
• 64
• 127
• 356

Tags

CCSS.HSF.BF.A.2

You have $10 in your bank account. It doubles every month. How much money will you have after 5 months?

• $50

• $100

• $160

• $250

Tags

CCSS.HSF.BF.A.2

What is a₅ in the sequence defined as follows?
a_n = 5 ⋅ 2^(n-1) 

• a₅ = 160
• a₅ = 40
• a₅ = 10
• a₅ = 80

Tags

CCSS.HSF.BF.A.2

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

• Formula

• Common Ratio

• Common Difference

• Common Factor

Which of the following best describes this sequence?

 $\left\{32,\ 20,\ 8,\ -4,\ ...\right\}$  

• Arithmetic

• Geometric

• Neither

• Both

Tags

CCSS.HSF.BF.A.2

What is the formula for the nth term of the sequence 3, -6, 12, -24, 48, ...?

• $a_n=-2\left(3\right)^n$

• $a_n=3\left(-2\right)^n$

• $a_n=-2\left(3\right)^{\left(n-1\right)}$

• $a_n=3\left(-2\right)^{\left(n-1\right)}$

Tags

CCSS.HSF.BF.A.2

Which of the following best describes this sequence?

 $\left\{5,\ 8,\ 11,\ 14,\ ...\right\}$  

• An arithmetic sequence with a common ratio of 3.

• A geometric sequence with a common difference of 3.

• An arithmetic sequence with a common difference of 3.

• A geometric sequence with a common ratio of 3.

Tags

CCSS.HSF.BF.A.2