Honor Geometric and Expo Quiz

Identify the common difference. 
10, 20, 30, 40, ...

• 5
• 10
• 15
• 20

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

• arithmetic
• geometric
• neither

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

• arithmetic
• geometric
• neither

Find the common ratio for the geometric sequence.

• 10
• 1/2
• 2
• 4

Write the explicit formula for the geometric sequence.

• a_n = 10(2)^n-1
• a_n = 2(10)^n-1
• a_n = 10(2)ⁿ
• a_n = 2(10)ⁿ

Tags

CCSS.HSF.BF.A.2

Find the common ratio for the geometric sequence.

• -4
• 4
• 1/4
• -1/4

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

Write an explicit rule for the general term of the sequence 5, 15, 45, . . . ?

• f(n) = 3⋅f(n-1) , n > 1
• f(n) = 5(3)^n-1
• f(n) = 3(5)^n-1
• f(n) = 5 + 3(n-1)

Given the formula: f(n)= 7(½)^n-1
Identify the first term.

• f(n)
• 7
• ½
• n

Tags

CCSS.HSF.BF.A.2