M1 LT17 Quiz

What does r represent?

• Radical

• Common difference

• Common ratio

Tags

CCSS.HSF.BF.A.2

Determine whether the sequence is arithmetic, geometric, or neither.

• arithmetic
• geometric
• neither

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

Find the first four terms of the sequence given the rule:

a_n = 4(5)ⁿ

• 20, 100, 500, 2500

• 4, 20, 100, 500

• 20, 100, 500, 2500

• 4, 9, 14, 19

Given the sequence:

125, 25, 5, ....

Write the explicit formula for the given geometric sequence.

• a_n = (125)(1/5)⁽ⁿ⁾

• a_n = 625(1/5)⁽ⁿ⁾

• a_n = 625(5)⁽ⁿ⁾

• a_n = 125 + 5n

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

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

Tags

CCSS.HSF.BF.A.2

Find the explicit formula for: 64, -32, 16, -8, …

• 64(-1/2)ⁿ

• (-32)^n-1

• 128(-1/2)ⁿ

• (32)^n-1

Find a₁₁ in the following geometric sequence:

-3, 6, -12, 24

• -4,096

• -¹/₂₅₆

• -3,072

• -236,196

Tags

CCSS.HSF.BF.A.2

Find the common ratio of the following geometric sequence:

2, -10, 50, -250, ...

• r = -5

• r = 3

• r = 5

• r = -3

Tags

CCSS.HSF.BF.A.2