Final answer:
The explicit formula for the given sequence is f(n) = 30 - 8(n-1).
Step-by-step explanation:
The explicit formula for the sequence given by the recursive formula f(n) = {f(1) = 30, f(n) = f(n-1) - 8 if n > 1} can be determined by analyzing the pattern of the sequence.
From the given recursive formula, we can see that each term in the sequence is obtained by subtracting 8 from the previous term.
Therefore, the explicit formula for this sequence is f(n) = 30 - 8(n-1).