Answer :
Answer:
- B. 81
Step-by-step explanation:
Note. It is assumed * is x in the function notation.
Given
- Function f(x) = (1/9)(9ˣ)
Rewrite it as:
- f(x) = 9⁻¹ 9ˣ = 9⁻¹⁺ˣ = 9ˣ⁻¹
Find f(3)
Substitute the value of x into equation:
- f(3) = 9³⁻¹ = 9² = 81
Correct answer choice is B