# calculus

posted by
**sara**
.

dy/dx= (2x-2xy)/(x^2+2y)

Find all points on the curve where x=2. Show there is a horizontal tangent to the curve at one of those points.

posted by
**sara**
.

dy/dx= (2x-2xy)/(x^2+2y)

Find all points on the curve where x=2. Show there is a horizontal tangent to the curve at one of those points.