Geometric Sequences Quiz

-81, 108, -144, 192,... Which formula can be used to describe the sequence?

640, 160, 40, 10...Which correctly describe the graph of the geometric sequence? Select two options.

Natalia is writing a recursive formula to represent the sequence 8, 12, 18, 27,... What value should she use as the common ration in the formula?

Isaak is writing an explicit formula to represent the sequence. 64, 112, 196, 343,... What value should he use as the common ration in the formula? Write the answer as a decimal rounded to the nearest hundredth.

A conservationist determines that a particular beach is eroding at a rate of 1.1% each year. When writing an explicit formula to represent the amount of beach remaining each year, which values should she use as the common ratio?

-2 2/3, -5 1/3, -10 2/3, -21 1/3, -42 2/3,... Which formula can be used to describe the sequence?

A sequence of numbers begins with 12 and progresses geometrically. Each number is the previous number divided by 2. Which value can be used as the common ratio in an explicit formula that represents the sequence.

Lena is asked to write an explicit formula for the graphed geometric sequence. What value, written as a decimal, should Lena use as the common ratio?

The points shown on the graph represent the numbers in a geometric sequence. What is the initial value of the sequence?

Which graph represents a geometric sequence?