Sequences Quiz

Which of the following is an explicit formula for this sequence? 8, 13, 18, 23...

• a_n = 5n + 8

• a_n = 5 + 8(n - 1)

• a_n = 8 + 5(n - 1)

• a_n = 3 + 5(n - 1)

Which of the following is an explicit formula for this sequence? 5, 15, 45, 135...

• a(n) = 5(3)^n-1

• a(n) = 15^n-1

• a(n) = 3(5)^n-1

• a(n) = 5 + 3(n-1)

What are the first five terms of this sequence? a_n+1 = 3a_n + 4, a₁ = 5

• 5, 15, 45, 135, 405

• 5, 19, 61, 187, 565

• 5, 17, 54, 166, 503

• 5, 8, 11, 14, 17

Find the fourth term, f(4), of this sequence. f(n + 1) = 2f(n) + n, f(1) = 3

• 42

• 19

• 71

• 54

In an arithmetic sequence, the 2nd term is 16 and the 5th term is 28. What are the 3rd and 4th terms?

• 4 and 8

• 22 and 26

• 32 and 64

• 20 and 24

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

• Arithmetic
• Geometric
• Neither

Tags

CCSS.HSF.BF.A.2

What kind of sequence is the pattern 400, 200, 100, 50, 25, ...?

• Arithmetic
• Geometric
• Neither

Tags

CCSS.HSF.BF.A.2

Determine the 3rd term of the sequence.

a₁=5

a_n= 2a_n-1 - 1

• 14

• 13

• 17

• 16

Tags

CCSS.HSF.BF.A.2

Write the explicit formula for the sequence shown below.

1, 6, 11, 16

• a_n=1+5(n-1)

• a_n=1−5(n-1)

• a_n=5−(n-1)

• a_n=5+(n-1)

Tags

CCSS.HSF.BF.A.2

If a sequence is given by A(n) = 3A(n-1) + 2n where A(1) = 5, what is the value of A(4)?

• 63

• 197

• 19

• 20