Homework Help: Calculus

Posted by K.Jeanes on Tuesday, April 19, 2011 at 12:04pm.

Consider the curve y^2+xy+x^2=15. What is dy/dx?

Find the two points on the curve where y equals 0 and show that the tangent lines there are parallel.

Find the coordinates of all points on the curve where there is a horizontal tangent line, with work.

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