Sequences and Series - Quiz Review

Find the missing term or terms in the arithmetic sequence: ...,12, ___, ___ , 72, ...

• -9 , -30
• -7, -26
• 32, 52
• -8, -28

Find the missing term or terms for the following geometric sequence: ...,2,___, ___, 128, ...

• 6, 24
• 8, 32
• 10, 40
• 2, 8

Find the next three terms in the sequence: -15, -12, -9, -6, -3, ...

• 0, 3, 6
• 3, 6, 9
• 6, 10, 14
• 8, 12, 16

For each sequence, state if it is arithmetic, geometric or neither. 
-30,-14,-6,-2, 0, ...

• Arithmetic
• Geometric
• Neither 
• I dunno???

For each sequence, state if it is arithmetic, geometric or neither. 
243,81,27,9,3...

• Arithmetic
• Geometric
• Neither
• Who knows?

For each sequence, state if it is arithmetic, geometric or neither. 
30,39,48,57,66,...

• Arithmetic
• Geometric
• Neither
• There's a difference???

Find the rule (explicit formula) for the arithmetic sequence
10,-190,-390,-590

• a_n = 10 -200n
• a_n = 12 -200n
• a_n = 210 -200n
• a_n = 14 -200n

Find the rule (explicit formula) for the geometric sequence. 
-3,-18,-108,-648,...

• a_n = 3(-6)^n-1
• a_n = -3(6)^n-1
• a_n = -2(6)^n-1
• a_n = 2(-6)^n-1

• 136
• 121
• 131
• 126

• ⁵/₂
• ⁸¹⁹/₅₁₂
• ⁸/₅
• ²¹/₁₆