An Sequences

Define arithmetic sequences.

• A sequence whose terms change by adding the same number each time.

• A sequence whose terms change by multiplying the same number each time.

• A sequence whose terms change by dividing the same number each time.

• A list of numbers that often (but not always) form a pattern.

Tags

CCSS.HSF.BF.A.2

This sequence is a(n)...

• Arithmetic Sequence with a common difference of 5

• Arithmetic Sequence with a common ratio of 5

• Geometric Sequence with a common difference of 5

• Geometric Sequence with a common ratio of 5

Tags

CCSS.HSF.BF.A.2

Given the sequence: 125, 25, 5, .... Write the explicit rule:

• a_n = (125)(1/5)^(n-1)

• a_n = 625(1/5)^(n-1)

• a_n = 625(5)⁽ⁿ⁾

• a_n = 125 + 5n

Tags

CCSS.HSF.BF.A.2

Given the sequence: 25, 21, 17, 13,... Write the explicit equation that models the sequence.

• a_n = 29-4(n-1)

• a_n = 4+25(n-1)

• a_n = 25-4(n-1)

• a_n = 4n + 25

Tags

CCSS.HSF.BF.A.2

• 315

• 330

• 345

• 360

What does a₁ represent?

• Any term

• First term

• Last term

Tags

CCSS.HSF.BF.A.2

Identify a₁

97, 86, 75, 64, ...

• 64

• 11

• -11

• 97

Tags

CCSS.HSF.BF.A.2

Is this graph Arithmetic or Geometric?

• Arithmetic

• Geometric

Tags

CCSS.HSF.BF.A.2

This sequence represents a(n)....

• Arithmetic Sequence

• Geometric Sequence

• Neither

Tags

CCSS.HSF.BF.A.2

Find the common ratio: 4, -16, 64, -256, ...

• r = -4

• r = 2

• r = -2

• r = 4

Tags

CCSS.HSF.BF.A.2