Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form. 64,8,1,

Answer 1

Hi Samara A

Common Ratio 1/8

64/8 = 8

8/8 = 1

Also notice if you multiply each term by 1/8 you get the next term.

64*1/8 =8

8*1/8 = 1

Below is another way of looking at it relative to the definitions and formulas that can be applied

8² = 64

8¹ = 8

8⁰ = 1

Check the definition and formulas of an Arithmetic Sequence and a Geometric Sequence, then you should be able to continue.

I hope this helps please write back if you have any questions.