Sequences Review

What is the main characteristic of an arithmetic sequence?

• It divides by 3 each time.

• It multiplies by 2 each time.

• It has a common difference.

• It has a common ratio.

How do geometric sequences differ from arithmetic sequences?

• They have a common difference.

• They add 3 each time.

• They subtract 2 each time.

• They have a common ratio.

What type of function do arithmetic sequences create?

• Exponential functions

• Quadratic functions

• Cubic functions

• Linear functions

Why shouldn't we connect the points on the graph for sequences?

• Because inputs can be negative.

• Because inputs can be decimals.

• Because outputs are always positive.

• Because inputs are whole numbers.

What is a key difference between arithmetic and geometric sequences?

• Arithmetic sequences have a common ratio.

• Geometric sequences have a common difference.

• Arithmetic sequences create exponential functions.

• Geometric sequences create exponential functions.

What type of sequence is this?

14, 26, 38, 50...

• arithmetic

• geometric

What two ways could you write the equation for this function?

14, 26, 38, 50....

1/4, 1/2, 2, 4, 8, 16.... is an example of a _______________ sequence.

Hallie started a TokTik account with 10 followers. Each week, her number of followers doubled. This would be an example of a ​ (a)   sequence with a first term of ​ (b)   and a common ratio of ​ (c)   .

• geometric
• 10
• 2
• arithmetic
• 12
• function
• double

Hallie's account started with 10 followers and doubled each week after that. What equation would you use to determine how many followers she had after 12 weeks?

a​ (a)   =​ (b)   (​ (c)   )¹¹

• 12
• 10
• 2