Fredrick E.

find all points on the curve x^2y^2+xy=2 where the slope of the tangent line is -1 I know that you have to find the derivative when it equals -1 i got y'=(2x*y^2-y)/(2x^2*y+x) (i don't know if it is correct or not) but i don't know how to go from here. an...