AP Calculus help!!! 1. The problem statement, all variables and given/known data consider y^2=2+xy a. show that dy/dx = y/2y-x b. find all pints (x,y) on the curve where the line tangent to the curve has slope 1/2 c. show that there are no points (x,y) on the curve where the line tangent to the curve is horizontal d. Let x and y be functions of time t that are related by the equation y^2=2+xy. At time t=5, the value of y is 3 and dy/dt=6. Find the value of dx/dt at time t=5. 2. Relevant equations chain rule, implicit differentiation 3. The attempt at a solution for this did part a, but I am really confused for b, c and d Thanks in advance for all your help.