1. The problem statement, all variables and given/known data Use the first derivative to determine where the graph of y = x/(x^2+1) is rising. 2. Relevant equations 3. The attempt at a solution Ive figured the derivative to be (1-x^2) / (x^2+1)^2 and I know that the derivative > 0 will tell me where the graph is rising. Im just not sure how to figure that out. Do I need to simplify my derivative a bit more to make it work?