Question

Given below is the odd-number function. Which of the following are equal to O(9)? Check all that apply. O(n) = 2n - 1

Answer 1

O(n) = 2n -1
if "n = 9" that is O(9)
so, use that in the function to get the value

Answer 2

make n = 9, what does 2n-1 give you?