posted by saRa .
Solve the given system of linear inequalities by graphing:
x+y>4 will turn into y>-x+4 you will graph it like it says = instead of > and shade above the line.
x-y<7 will turn into y>x-7. Graph like there is an = and shade above the line with a different color.
Where the colors overlap will be the answer>
Using the following system of inequalities find the maximum value of f(x,y)=3x+2y