Write a recursive formula for each sequence given or described below.
it has an explicit formula of f(n) = −1(12) ^ n−1 for n ≥ 1.

Recursive form of sequence is given by f(n)=12f(n-1)

Step-by-step explanation:

The explicit form of sequence is  given as

        f(n) = −1(12)ⁿ⁻¹

So nth term is given by

            f(n) = −1(12)ⁿ⁻¹

(n-1)th term is given by    

            f(n-1) = −1(12)ⁿ⁻²

We have

Recursive form of sequence is given by f(n)=12f(n-1)

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3

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