Geometric Sequence Function

Write the explicit formula for the geometric sequence.

• a_n = 4(3)^n-1

• a_n = 3(4)^n-1

• a_n = -4(3)^n-1

• a_n = 3(-4)^n-1

Tags

CCSS.HSF.BF.A.2

Write the explicit formula for the geometric sequence.

• a_n = 162(2/3)^n-1

• a_n = (2/3)(162)^n-1

• a_n = 162(3/2)^n-1

• a_n = 162 + (n-1)(-54)

Tags

CCSS.HSF.BF.A.2

Find the common ratio for the geometric sequence.

• 2

• -2

• 1/2

• -1/2

Tags

CCSS.HSF.BF.A.2

The "a" value in f(x)=a(b)^x for geometric sequences represents what?

• first term

• term we're looking for, minus one

• common difference

• common ratio

Tags

CCSS.HSF.BF.A.2

• initial value

• increment

• starting point

• change rate

• common ratio

• opens up/down

• distance

• slope

• first term

• common difference

Tags

CCSS.HSF.BF.A.2

Find the common ratio for the geometric sequence.

• 10

• 1/2

• 2

• 4

Tags

CCSS.HSF.BF.A.2

Find the common ratio for the geometric sequence.

• 1

• -1

• 7

• -7

Tags

CCSS.HSF.BF.A.2

What are the next 3 terms in the following geometric sequence:

512, 256, 128, ___, ___, ___, ...

• 1024, 2048, 4096

• 32, 8, 2

• 64, 32, 16

• 92, 66, 38

Tags

CCSS.HSF.BF.A.2

What is the 9^th term in a geometric sequence with a common ratio of 2 and a first term of 3?

• 384

• 768

• 1,536

• 27

Tags

CCSS.HSF.BF.A.2

Given the recursive formula, find the first four terms:

a_n = a_n-1⋅-3

a₁ = 45

• 45, -135, 405, -1215

• -45, -135, -405, -1215

• 45, 135, 405, 1215

• 45, 42, 39, 36

Tags

CCSS.HSF.BF.A.2