Hi,

This is driving me nuts... I've put in a good few hours and still stuck.. can't seem to find much on this online either.

OK, I'm trying to draw the curve of

I used implicit differentiation to find

I put this equal to zero to find critical points.. gives me

I plug this back into the original equation to simplify to

so I have .

And I'm stuck (badly)

I need to find the turning points and to draw the curve.. Any help?

Thank you.