Respuesta :

Answer:

D.) 27 * ( 1/3) ^ (x-1)

Step-by-step explanation:

This is because the first value, 27, indicates the rest state, or the y intercept.  The second value, 1/3, is derived from the pattern of the values decreasing by the previous value being divided by 3, or technically multiplied by (1/3).  The (x-1) is derived from the original formula for the geometric series.

f(x) = x * r ^ (n-1)

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