Geometric Sequence Quiz Review

In the sequence 5, 25, 125.... what is the "r"?

• 1/5

• 20

• 5

• -5

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CCSS.HSF.BF.A.2

In the sequence 99, 33, 11 ... what is the "a1"?

• 33

• 99

• 11

• -11

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CCSS.HSF.BF.A.2

What does "r" stand for?

• Common Difference

• Common Core

• Common Addition

• Common Ratio

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CCSS.HSF.BF.A.2

Find the Explicit Geometric Formula

• a_n=a₁ (r)^n-1

• a_n=a₁ + (r)^n-1

• a_n=a_n-1 (r)

• a_n=a₁ (d)^n-1

Tags

CCSS.HSF.BF.A.2

Using the explicit formula a_n= 4 (2)^n-1 what is the 5th term?

Mathematical Equivalence

ON

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CCSS.HSF.BF.A.2

Find the next three terms in the sequence 4, 12, 36​ ​ ​ (a)   ​ (b)  

​ ​ (c)  

• 108
• 324
• 972
• 44
• 39

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CCSS.HSF.BF.A.2

Match the following

• r=4

• 2,4,6......

• r=2

• 900, 300, 100

• r=1/2 or .5

• 9, 3, 1.....

• r=3

• 8, 32, 128

• r=1/3 or .3333

• 100, 50, 25.....

Tags

CCSS.HSF.BF.A.2

Match the following sequence with the type it is (Arithmetic or Geometric)

• Arithmetic

• 2, 4, 6.....

• Geometric

• 1, 4, 7....

• Geometric

• 9, 3, 1....

• Geometric

• 7, 14, 28.....

• Arithmetic

• 3, 9, 27.....

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CCSS.HSF.BF.A.2

Find the 5th term using any method 4, 8, 16 (a)  

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CCSS.HSF.BF.A.2

Graphically, what would a geometric sequence look like?

• Linear

• Exponential

• Points (not connected)

• Vertical line

Tags

CCSS.HSF-IF.C.7E