Sequences Review

What is the common difference of the sequence below?

6, 9, 12, 15, ...

Hint: Common difference means the ADDING pattern

• 3

• 6

• 9

• 12

What is the first term of the sequence below?

6, 9, 12, 15, ...

• 3

• 6

• 9

• 12

What is the common ratio of the geometric sequence below?
5, 25, 125, 625...

• 25
• 20
• 5
• 4

Which sequence is a geometric sequence with a common ratio of 2?

• 5, 3, 1, -1, ...

• 5, 7, 9, 11, ...

• 5, 10, 20, 40, ...

• 5, 15, 45, 135, ...

• Arithmetic

• Geometric

• Neither

• Both

• An arithmetic sequence with a common ratio of 3.

• A geometric sequence with a common difference of 3.

• An arithmetic sequence with a common difference of 3.

• A geometric sequence with a common ratio of 3.

Given the sequence:

125, 25, 5, ....

Write the explicit rule:

What is the expression in terms of n for the sequence a_n  as defined in the input-output table?

Write a recursive rule for the sequence represented in the graph

• f(1)=3, f(n)=f(n-1) +3

• f(1)=3, f(n)=2f(n-1)

• f(n)=3+3n

• f(n)=3n

Write the first five terms of the sequence. a(1)=8 a(n)=a(n-1) -3

• 8, 11, 14, 17, ...

• 8, 24, 72, 216

• 
  8, 5, 2, -1,....