Geometric Sequences Find N Term

This sequence represents a(n)....

• Arithmetic Sequence

• Geometric Sequence

• Neither

Tags

CCSS.HSF.BF.A.2

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

• r = -4

• r = 2

• r = -2

• r = 4

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

Given the sequence: 125, 25, 5, .... Write the explicit rule:

• a_n = (125)(1/5)^(n-1)

• a_n = 625(1/5)^(n-1)

• a_n = 625(5)⁽ⁿ⁾

• a_n = 125 + 5n

Tags

CCSS.HSF.BF.A.2

Find the 9th term in the following geometric sequence:

Mathematical Equivalence

ON

Tags

CCSS.HSF.BF.A.2

List the first five terms of the geometric sequence. Assume that the sequence begins at n = 1.

• 2 , 1/2 , 1/8 , 1/32 , 1/128

• 1/2 , 1/8 , 1/32 , 1/128 , 1/256

• 8 , 2 , 1/2 , 1/8 , 1/32

• 2 , 8 , 32 , 128 , 256

Tags

CCSS.HSF.BF.A.2

Which sequence is represented by the equation a_n = 2(7)^n-1 ?

• 7, 14, 28, 56...

• 2, 14, 98, 686...

• 2, 9, 16, 23...

• 7,9,11,13...

Tags

CCSS.HSF.BF.A.2

In the geometric sequence

2, 6, 18, n, 162, ..., what is the value of n?

• 54

• 90

• 24

• 36

Tags

CCSS.HSF.BF.A.2

In a geometric sequence, the 4th term is -12 and the 5th term is -24. Find the common ratio.

• 2

• -2

Tags

CCSS.HSF.BF.A.2

Find the next three terms of the sequence 31104, 5184, 864, ___, ___, ___.

• 104, 44, 24

• 124, 44, 14

• 144, 24, 4

• 164, 54, 34

Tags

CCSS.HSF.BF.A.2