SOLUTION: I am trying to work this problem out...keep running into the wall...could please explain...the less and greater than sign has a line underneath. solve the following sytem of lin

Algebra ->  Graphs -> SOLUTION: I am trying to work this problem out...keep running into the wall...could please explain...the less and greater than sign has a line underneath. solve the following sytem of lin      Log On


   



Question 70071: I am trying to work this problem out...keep running into the wall...could please explain...the less and greater than sign has a line underneath.
solve the following sytem of linear inequalities by graphing.
x+2y<3
2x-3y<6

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
solve the following system of linear inequalities by graphing.
x+2y<=3
2x-3y<=6
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Solve each for y as follows:
y<=(-1/2)x+(3/2)
y>=(2/3)x-2
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Graph the EQUALITIES involved as they are the boundary of the solution sets
y=(-1/2)x+(3/2) passes thru (0,3/2) and (2,1/2); graph it and shade half-plane
below the equality line.
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y=(2/3)x-2 passes thru (0,-2) and (3,0); graph it and shade half-plane above
the equality line.
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The solution set is all the points that satisfy both conditions for "y".
The equality lines look like this:
graph%28600%2C400%2C-10%2C10%2C-10%2C10%2C%28-1%2F2%29x%2B%283%2F2%29%2C%282%2F3%29x-2%29
Cheers,
Stan H.