Visualizing the Lagrange Multiplier Method.

A contour graph is shown for [math]f(x,y) = y^2 +4y - x^2 y [/math]. Use it to help you find points on the set x^2+y^2≤9 where f has a maximum or miminim value.
Visualizing the Lagrange Multiplier Method.
– Norm Prokup

Information: Visualizing the Lagrange Multiplier Method.