Find an equation of tangent line at the point (-1, 1) to the curve x^4 y^2 + 1 = x^2 + y^3 I don't know how to figure this problem out. 10/26/2014 | Kirah from Glassboro, NJ | 1 Answer | 0 Votes
Find the points where the following graph has a vertical tangent line Find the points where the following graph has a vertical tangent line. 4x2 + y2 -8x + 4y + 4=0 11/25/2012 | Lana from Leesburg, VA | 1 Answer | 0 Votes