Implicit Differentiation Problems (Calc 1)

[Barbs]

Hey guys, I have two implicit differentiation problems (Calculus 1) that I'm stumped on. If anyone could help me with these I'd really appreciate it.

1. Find a point on the curve x^3+y^3=7xy other than the origin at which the tangent line is horizontal.

2. Differentiate the equation x^3+6xy^4=15 with respect to the variable t and express dy/dx in terms of dx/dt.

 

[Anavar]

Been a while since I've done implicit differentiation, but I can help you out with stuff like this. We can do this through PMs or you can add me on Skype, though I'm not regularly on my Sythe Skype.

 

Gravedig.