Sequences Review

What is the explicit rule for the sequence: 11, 22, 44, 88

• a_n = 2(11)^n-1
• a_n = 11x2
• a_n = 11(2)^n-1

Given 
a_n = 3(2)^(n-1),      
what is the 14th term?

• 14
• 24,576
• 49,152
• 3,188,646

What is the common difference:
-2, -11, -20, -29...

• Every Number
• 9
• -2
• -9

What is the next term:
6, 12, 18, 24...

• 30
• 32
• 34
• 6

What is the explicit formula for the following sequence: 3, -1, 1/3, -1/9,... 

• a_n = 1/3 ⋅ (3)^n-1
• a_n = 3 ⋅ (1/3)^n-1
• a_n = -1/3 ⋅ (3)^n-1
• a_n = 3 ⋅ (-1/3)^n-1

Determine whether the sequence is arithmetic, geometric, or neither:
-4, 1, 6, 11, ...

• arithmetic
• geometric
• neither

Determine whether the sequence is arithmetic, geometric, or neither: 
2, 8, 32, 128, ...

• arithmetic
• geometric
• neither

Determine whether the sequence is arithmetic, geometric, or neither: 
2, 8, 32, 128, ...

• arithmetic
• geometric
• neither

What is the explicit formula for the following sequence? 
2, 8, 14, 20, ...

• a_n = -6⋅n + 6
• a_n = 6⋅n + 2
• a_n = 2⋅n + 6
• a_n = 6⋅n - 4

Given the formula f(n+1) = f(n) - 3, f(1) = 20, name the first 3 terms. 

• -3, 0, 3
• -3, 17, 37
• 20, 23, 26
• 20, 17, 14