1. The problem statement, all variables and given/known data Use the polar graph to determine the signs (+,-,0) of each derivative at the point labeled A. 2. Relevant equations dy/dx= dy/dtheta= dx/dtheta= dr/dtheta= 3. The attempt at a solution Hi people, I need help with this question. See the picture of the graph attached. I'm not sure if I'm over-complicating this question. I attempted to come up with the equation and got r=6cos2theta. I then substituted r=y/sintheta and r=x/costheta separately to eventually get my dy/dtheta and dx/dtheta, which eventually got dy/dx. I assumed that A came from theta=-2pi/3 and then I plugged that in to get my answers. I ended up getting +, +, +, and -. However, my professor gave me the answers +,-,-, and -. Am I over-complicating the problem? Is there a way to just read the graph? Thanks!