# cal3

posted by
**Lucy**
.

Find and classify all local minima, local maxima, and saddle points of the function f(x,y)= -3yx^2-3xy^2+36xy

I really need help answering this one!! Please answer in detail! Thank you

posted by
**Lucy**
.

Find and classify all local minima, local maxima, and saddle points of the function f(x,y)= -3yx^2-3xy^2+36xy

I really need help answering this one!! Please answer in detail! Thank you