i'm trying to maximize the equation z=2x1+4x2+3x3 subject to
x1>=0,x2>=0, and x3>=0
where x1,x2,and x3 are the axis in the graph. i was able to maximize problems in R^2 easily by finding the extreme points, but i'm having difficulty finding extreme points of the polyhedron in R^3. is there any way to find such extreme points in R^3?