Geometric Sequences Explicit Recursive Formulas

Which kind of sequence has a common ratio?

• Arithmetic

• Geometric

Tags

CCSS.HSF.BF.A.2

What is the common ratio: 5, 25, 125, 625...

• 25

• 20

• 5

• 4

Tags

CCSS.HSF.BF.A.2

Which of the following recursive formulas represents the given sequence. 4, 12, 36, 108, 324, ...

Tags

CCSS.HSF.IF.A.3

Write the explicit formula for the sequence.

Tags

CCSS.HSF.LE.A.2

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Tags

CCSS.HSF.BF.A.2

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Tags

CCSS.HSF.BF.A.2

Which formula is used to find the explicit equation for geometric sequences?

• a_n = a_n-1 + d

• a_n = a_n-1 * r

• a_n = a₁ + d(n-1)

• a_n = a₁ * r^n-1

Tags

CCSS.HSF.BF.A.2

• A.
• B.
• C.
• D.

Tags

CCSS.HSF.BF.A.2

Which of the following EXPLICIT formulas would model the same sequence as defined by the recursive formula given below?

Tags

CCSS.HSF.LE.A.2

Find an explicit rule for the nth term of the sequence.

• a_n= -2(4)^n-1

• a_n= -2(4)ⁿ

• a_n= 2(-4)^n-1

• a_n= 2(4)^n-1

Tags

CCSS.HSF.BF.A.2