Arithmetic Sequences

Which kind of sequence has a common difference?

• Arithmetic
• Geometric

• one

• first term

• common difference

• the sequence starts with the value 1

Given the sequence -5, -15, -25, -35..., which recursive formula describes it?

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

What is a₇ ?

• -13

• -11

• -18

• -22

In a certain arithmetic sequence, a₅ = 12 and a₆ = 16. What is a₁ ?

• -8

• -4

• 4

• 8

This is an arithmetic sequence. 8, 7.3, 6.6, 5.9, . . .

What function describes the sequence?

• f (x) = −0.7x + 8

• f (x) = −0.7x + 8.7

• f (x) = 0.7x + 8

• f (x) = 0.7x + 8.7

Given the arithmetic sequence: 22, 17, 12, 7, . . . . What is the recursive formula that models the sequence?

• f (1) = 7

  f (n) = f (n − 1) − 5

• f (1) = 22

  f (n) = f (n − 1) − 5

• f (1) = 7

  f (n) = f (n − 1) + 5

• f (1) = 22

  f (n) = f (n − 1) + 5

If an arithmetic sequence is graphed, which of the following will best model the shape of the graph?

• Linear

• Exponential

• Quadratic

This is an arithmetic sequence. How many dots would be in the next figure?

• 4

• 13

• 14

• 15

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.IF.A.3

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

• Formula

• Common Ratio

• Common Difference

• Common Factor

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.2