Question

Which of the following is an odd function?

y = x^3 + 1
y = cosx
y = sinx
y = lnx
y = e^-x

Answer 1

y = x^3 + 1
y = sinx

Answer 2

just look at their graphs

Answer 3

use: www.wolframalpha.com

Answer 4

@myko Well there can only be one answer. I'm going to assume it's sinx and not x^3+1, only due to the fact that it's +1 from the origin

Answer 5

yes, you right . y = x^3 + is shifted, so it's not odd

Answer 6

@myko Okay, thank you! :)