Question

given below is the odd number function. Which of the following are equal to O(10)
O(n)=2n-1
check all that apply
A.19
B.O(9)+2
C.The 10th odd number
D.10

i really need help on this

Answer 1

the function itself, is a function that no matter what ODD or UNEVEN value you give to "n"
the O(n) function will always give an ODD number, never an EVEN one

so, what they're asking is, what would be O(n) when n = 10, or O(10)
which is pretty straight forward, just set n = 10 in the function, and get the value

Answer 2

or I should have said, no matter what value "n" takes, the function will always "spit out" an UNEVEN number

Answer 3

so what would be the answers?

Answer 4

well, set n = 10, for O(n) = 2n -1
what does it give you?

Answer 5

O(10)=20-1?

Answer 6

yes

Answer 7

so is it only 19? or are there other answers

Answer 8

so, \(\bf \text{"the following are equal to O(10)"}\) , 19 :)

Answer 9

so only 19?

Answer 10

yes