Function Notation with Arithmetic Sequences

• 5.5, 6, 6.5, 7

• 5.5, 2.75, 1.375, 0.6875

• -0.5, 5, 10.5, 16

• 5.5, 5, 4.5, 4

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CCSS.HSF.IF.A.3

Given the sequence 30, 40, 50, 60..., which recursive formula describes it?

Tags

CCSS.HSF.IF.A.3

Given the recursive formula, find the first four terms:
a_n = a_n-1 + 5
a₁ = -16

• -16, -21, -26, -31

• 5, -11, -27, -43

• -16, -80, -500, -200

• -16, -11, -6, -1

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CCSS.HSF.BF.A.2

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

• Arithmetic

• Geometric

• Neither

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CCSS.HSF.BF.A.2

Find the common difference.

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CCSS.HSF.BF.A.2

Select the explicit rule that represents the sequence.

• a_n = 14(-3)(n - 1)

• a_n = 3 + (n - 1)(14)

• a_n = 14 + (n - 1)(-3)

• a_n = -3 + (n - 1)(14)

Tags

CCSS.HSF.BF.A.2

A sequence is shown below: 2, 5, 8, 11, ... Which explicit formula can be used to model the sequence?

• a_n = 3 - 11(n - 1)

• a_n = 2 + 3(n - 1)

• a_n = 11 - 3(n - 1)

• a_n = 3 + 2(n - 1)

Tags

CCSS.HSF.BF.A.2

What is the 15th term of the sequence an = -3n+50

• 95

• -5

• 5

• -95

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

Given the sequence:
 25, 21, 17, 13,...
Write the explicit equation that models the sequence.  (Hint:  Simplify your equation.)

• a_n = 4n + 29

• a_n = -4n + 25

• a_n = -4n + 29

• a_n = 4n + 25

Tags

CCSS.HSF.BF.A.2