Question

Jake has proved that a function, f(x), is a geometric sequence. How did he prove that?

A He showed that an explicit formula could be created.
B He showed that a recursive formula could be created.
C He showed that f(n) ÷ f(n − 1) was a constant ratio.
D He showed that f(n) − f(n − 1) was a constant difference.

Answer 1

The defining characteristic of any geometric sequence is the common ratio, which is the constant found when dividing any term by the term preceding it.

C. He showed that f(n)/(f(n-1) was a constant ratio.

Answer 2

The answer to your question is : C. He showed that f(n) ÷ f(n − 1) was a constant ratio.