Ch. 8 Practice Test!

Which kind of sequence has a common ratio?

• Arithmetic
• Geometric

Tags

CCSS.HSF.BF.A.2

Which kind of sequence has a common difference?

• Arithmetic
• Geometric

Tags

CCSS.HSF.BF.A.2

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 arithmetic 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 arithmetic sequence. 34, 37, 40, 43, ...

• 32
• 64
• 127
• 356

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

Create the formula for the geometric sequence:
1, 4, 16, 64...

• a_n = 3^n-1
• a_n = 2^n-1
• a_n = 5^n-1
• a_n = 4^n-1

Tags

CCSS.HSF.BF.A.2

This is an arithmetic sequence. 5, 2, –1, –4, . . .

What is a₇ ?

• -13

• -11

• -18

• -22

Tags

CCSS.HSF.BF.A.2

In an arithmetic sequence, the third term is 1 and the ninth is 49. What is the explicit formula for the sequence?

• a_n = 8n − 15

• a_n = −8n − 15

• a_n = 8n − 23

• a_n = −8n − 23

Tags

CCSS.HSF.BF.A.2