Geometric Sequences Recursive

Find the common ratio for the geometric sequence.

• 10

• 1/2

• 2

• 4

What is the common ratio for the sequence:
28, 14, 7, 3.5...

• 2

• 1/2

• -14

• -7

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

• r = -4

• r = 2

• r = -2

• r = 4

Find the next three terms: 4, 12, 36, 108, ...

• 324, 972, 2916

• 972, 2916, 8748

• 405, 1215, 3645

Which formula is used to find the recursive 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

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

• a_n = a_(n-1) + d

• a_n = r⋅a_(n-1)

• a_n = a₁ + d(n-1)

• a_n = a₁ ⋅ r^n-1

In a geometric sequence, a₄ = −9, a₅ = −27, and a₆ = −81. What is the recursive formula for this sequence?

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A sequence is defined recursively by the function below. What are the terms of the sequence?​ ​

• 2

• 0.0625

• 4

• 1

• 0.5

• 0.25

• 0.125

What is the recursive rule for the sequence:
-2, 12, -72, 432, ...

• a_n = -2(-6)^n-1
  a₁=-2

• a_n =a_n-1 + 10
  a₁=-2

• a_n = -6⋅a_n-1 a₁=-2

• a_n = a_(n-1) - 6 a₁=-2

Write the recursive equation for the sequence -3, 12, -48, 192...

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