Topic: Shading to the graph and mark the corner points

I  DOWNLOAD  SetupGraph-4.4.2, IT  IS VERY USEFUL MY STUDENTS IN 9TH STANDARD.
BUT THE PROBLEM IS THE OPTIONS OF [ FUNCTION - INSERT SHADING(F3) IS NOT WORKING ]
MY  PROBLEM AND MANUALY SOLVED GRAPH IS ATTACHED HERE..............
IN THE ATTACHED GRAPH  PLEASE SEE THE SHADED REGION................

1. IN GRAPH-4.4.2 SOFTWARE...............THE CORNER POINTS OF THE SHADED REGION CANNOT MARKED
2. IN GRAPH-4.4.2 SOFTWARE...............I CANNOT SHADE THE FEASIBLE REGION

THESE TWO PROBLEMS ARE SOLVED , THE GRAPH-4.4.2 SOFTWARE IS VERY GOOD.
I EXPECT  , TO KIND CONSIDER MY REQUEST,
PLEASE HELP ME
Benny
India

Post's attachments

Attachment icon 1234.jpg 752.92 kb, 327 downloads since 2013-09-25 

Re: Shading to the graph and mark the corner points

You can use a point series to mark the corner points.
There are two ways to shade the area. You can combine the two functions into one, f(x)=if(x<4, 11-2x, 5-0.5x), and shade above this function. But in this case it is probably easier to create an inequality (use Insert relation in the menu) that is a combination of the two inequalities you have: 2x+4y >= 20 and 4x+2y >= 22

I have attached a grf file that shows both ways.

Post's attachments

Attachment icon Shading.grf 1.86 kb, 586 downloads since 2013-09-25 

Re: Shading to the graph and mark the corner points

thank you sir
i am very happy sir................