Tuesday
September 2, 2014

Homework Help: Math

Posted by Joanie on Tuesday, January 20, 2009 at 8:41pm.

I have two problemson polygonal convex sets which I do not understand.

The first: Find the minimum value of f(x,y) = 2x-y+2 for the polygonal convex set determined by this system of inequalities:

x is more than or equal to 1
x is less than or equal to 3
y is more than or equal to 0
1/2x + y is less than or equal to 5

The second problem:

This system forms a polygonal convex set: x is less than or equal to 0;
y is more than or equal to -x, if x is between 0 and -6.

y is less than or equal to 10; 2x + 3y is more than or equal to 6, if x is between -12 and -6.

What is the area of the closed figure?


I do not have a clue as to how to do either of these problems.

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