Answer:
Odd (second option)
Step-by-step explanation:
Plug -x in for x, and then simplify.
If it ends up same function then it is even.
If it ends up opposite then odd
So f(x) = -x / (x^2 - 1)
Plug in x = - x
f(x) = -(-x) / ((-x)^2 -1)
f(x) = x / (x^2 - 1)
This function is opposite the original function so answer is odd
