document.write( "Question 1065033: Consider the following linear program:
\n" ); document.write( "Max 1A+2B
\n" ); document.write( "s.t
\n" ); document.write( "1A ≤5
\n" ); document.write( "1B≤5
\n" ); document.write( "2A+2B=12
\n" ); document.write( "A,B≥0
\n" ); document.write( " a.Show the feasible region
\n" ); document.write( " b.What are the extreme points of the feasible region?
\n" ); document.write( " c.Find the optimal solution using the graphical procedure.
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Algebra.Com's Answer #680162 by Theo(13342)\"\" \"About 
You can put this solution on YOUR website!
to use online graphing software, let x = A and let y = B.
\n" ); document.write( "this changes your inequalities and equations as follows:\r
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\n" ); document.write( "\n" ); document.write( "maximize x + 2y, such that:
\n" ); document.write( "x <= 5
\n" ); document.write( "y <= 5
\n" ); document.write( "2x + 2y = 12
\n" ); document.write( "x,y >= 0\r
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\n" ); document.write( "\n" ); document.write( "you would graph the equations.\r
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\n" ); document.write( "\n" ); document.write( "those would be:\r
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\n" ); document.write( "\n" ); document.write( "x = 5
\n" ); document.write( "y = 5
\n" ); document.write( "2x + 2y = 12
\n" ); document.write( "x = 0
\n" ); document.write( "y = 0\r
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\n" ); document.write( "\n" ); document.write( "you would then find the region of feasibility by looking at the areas on the graph that satisfy the inequalities and equations.\r
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\n" ); document.write( "\n" ); document.write( "those would be:\r
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\n" ); document.write( "\n" ); document.write( "x >= 5
\n" ); document.write( "y >= 5
\n" ); document.write( "2x + 2y = 12 (this is an equation and not an inqquality)
\n" ); document.write( "x >= 0
\n" ); document.write( "y >= 0\r
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\n" ); document.write( "\n" ); document.write( "your graph will look like this:\r
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\n" ); document.write( "\n" ); document.write( "you can see that your feasible region is the area on the graph that is:\r
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\n" ); document.write( "\n" ); document.write( "on or below the line y = 5
\n" ); document.write( "on or to the left of the line x = 5
\n" ); document.write( "on or above the line y = 0
\n" ); document.write( "on or to the right of the line x = 0
\n" ); document.write( "on the line 2x + 2y = 12\r
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\n" ); document.write( "\n" ); document.write( "what this says is that your solution has to:\r
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\n" ); document.write( "\n" ); document.write( "be on the line of 2x + 2y = 12
\n" ); document.write( "have an x-coordinate that is greater than or equal to 0 and less than or equal to 5.
\n" ); document.write( "have a y-coordinate that is greater than or equal to 0 and less than or equal to 5.\r
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\n" ); document.write( "\n" ); document.write( "your max/min balue should be at the corner points of the feasible region.\r
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\n" ); document.write( "\n" ); document.write( "those corner points would be at (x,y) = (1,5) and (x,y) = (5,1)\r
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\n" ); document.write( "\n" ); document.write( "i plotted some other points on the line just to show you that the max/min value is indeed on the corner points of the feasible region.\r
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\n" ); document.write( "\n" ); document.write( "the values i got for x + 2y at the following coordinates are:\r
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\n" ); document.write( "\n" ); document.write( "(1,5) = 11
\n" ); document.write( "(2,4) = 10
\n" ); document.write( "(3,3) = 9
\n" ); document.write( "(4,2) = 8
\n" ); document.write( "(5.1) = 7\r
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\n" ); document.write( "\n" ); document.write( "your maximum solution is at the coordinate of (1,5).\r
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\n" ); document.write( "\n" ); document.write( "all of your constraints have to be satisfied.\r
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\n" ); document.write( "\n" ); document.write( "at the point (1,5):\r
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\n" ); document.write( "\n" ); document.write( "x <= 5 is satisfied because x = 1
\n" ); document.write( "y <= 5 is satisfied because y = 5
\n" ); document.write( "x >= 0 is satisfied because x = 1
\n" ); document.write( "y >= 0 is satisfied because y = 5
\n" ); document.write( "2x + 2y = 12 is satisfied because 2*1 + 2*5 = 2 + 10 = 12\r
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\n" ); document.write( "\n" ); document.write( "your solution is that the maximum value is when x = 1 and y = 5.\r
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\n" ); document.write( "\n" ); document.write( "that is one of the corner points of the feasible region.\r
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