Final answer:
The common ratio in the given geometric sequence is 2. f(1) = 16 and f(5) = 256.
Step-by-step explanation:
The common ratio in the given geometric sequence is 2. This can be determined by dividing each term by the term before it. For example, 32 ÷ 16 = 2. Therefore, the common ratio is 2.
To find f(1), we substitute 1 into the function f. Since the first term in the sequence is 16, f(1) = 16.
To find f(5), we need to find the fifth term in the sequence. Using the formula for a geometric sequence, aₙ = a₁ * r^(n-1), where aₙ is the nth term, a₁ is the first term, r is the common ratio, and n is the position of the term, we can plug in the values: a₅ = 16 * 2^(5-1) = 16 * 2^4 = 16 * 16 = 256. Therefore, f(5) = 256.