Question

Fiona has proved that a function, f(x), is an arithmetic sequence. How did she prove that?

She showed that an explicit formula could be created.
She showed that a recursive formula could be created.
She showed that f(n) ÷ f(n − 1) was a constant ratio.
She showed that f(n) − f(n − 1) was a constant difference.

B right?

Answer 1

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