document.write( "Question 148294: Hello. I ran across a problem that left me baffled. It is not a hard one but I just did not retain it whe nI learned algebra if I learned it at all. Here goes:
\n" ); document.write( "The constraint 5x+2y<=0 passes through (20,50), (10,0), (20,0), (0,-5). Why and how?
\n" ); document.write( "Also, the constraint 2x-3y>=0 passes through (10,50), (30, 20), (0, 30) (-10, 0)
\n" ); document.write( "Why and how? \n" ); document.write( "
Algebra.Com's Answer #108693 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The constraint 5x+2y<=0 passes through (20,50), (10,0), (20,0), (0,-5). Why and how?
\n" ); document.write( "Substitute x and y in the inequality with the numbers in each numbered pair
\n" ); document.write( "to see if you get a true statement.
\n" ); document.write( "Example: using (20,50) you get
\n" ); document.write( "5*20+2*50 <= 0
\n" ); document.write( "100 + 100 <= 0
\n" ); document.write( "200 <= 0
\n" ); document.write( "That is false.
\n" ); document.write( "---------------
\n" ); document.write( "It is true only for (0,-5)
\n" ); document.write( "------------------------
\n" ); document.write( "Also, the constraint 2x-3y>=0 passes through (10,50), (30, 20), (0, 30) (-10, 0)
\n" ); document.write( "Why and how?
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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