An odd function is a function for which the value of $f(\text{-}x)$ is equal to the value of $\text{-}f(x)$ for all the values in its domain. It is like if the function allows moving the negative sign from the input to the output. The graph of an odd function is symmetric about the origin, meaning that the graph looks the same after a $180^{\circ }$ rotation about the origin. The functions $y=x$ and $y=x^3$ are two examples of odd functions. Notice that if a function is odd and the point $(x,y)$ is on the graph, then the point $(\text{-}x,\text{-}y)$ is also on the graph. A function can be odd, even, or neither.