Geometric Sequences

Is the sequence-4, -12, -36, -108,... geometric?

• yes
• no

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.IF.A.3

Is this sequence geometric, arithmetic or neither: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34. . . 

• Geometic
• Arithmetic
• Neither

Is the sequence -432, 72, -12, 2,...geometric?

• yes
• no

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.2

Is the sequence 7, 9, 12, 16,... geometric?

• yes
• no

Tags

CCSS.HSF.BF.A.2

CCSS.HSF.IF.A.3

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

CCSS.HSF.LE.A.2

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

What is the distance from one number to the next in a sequence of numbers that is represented by a (d) in an arithmetic sequence?

• Common denominator
• Common opposites
• Common domain
• Common difference

The next term of the series 11,8,5,2 is

• -1
• -2
• 1
• 2