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WebGraphing.com Forum » List all forums » Forum: Algebra, Pre-Algebra, and Basic Math Homework Help » Thread: Graphing inequalities with 2 variables |
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Total posts in this thread: 6 |
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iantc39
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Ok so a problem like -2x-2y>2 I can plug that into the graph on here, but how do i determine the coordinates to set the boundry line? It just graphs the equation and shades the area in, if I can't get the intercepts or 2 sets of cordinates how can I reproduce the graph? |
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pskinner
Joined: Apr 2, 2005 Posts: 797 Status: Offline |
Separately, you can plot -2x-2y=2 in the equation plotting calculator to "see" the boundary line. Pick the xmin and xmax and you will get a table of values to plot...be sure to include 0 between the xmin and xmax to get the y-intercept. ---------------------------------------- Principal Skinner |
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JeremyStevens
 United States Joined: Apr 15, 2012 Posts: 2 Status: Offline |
Does xmin and xmax function gives exact result? ---------------------------------------- swim cap materials |
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pskinner
Joined: Apr 2, 2005 Posts: 797 Status: Offline |
The xmin and xmax are just the x-interval values and they need to be selected...in this case, to include 0. ---------------------------------------- Principal Skinner |
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steveghurd
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How it is possible to plot the graph through this equation. ---------------------------------------- how to start a llc in florida |
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pskinner
Joined: Apr 2, 2005 Posts: 797 Status: Offline |
I suggest you check out the web page of examples to get an idea of how to graph inequalities: http://webgraphing.com/examples_inequality_2d.jsp ---------------------------------------- Principal Skinner |
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Re: Graphing inequalities with 2 variables
Re: Graphing inequalities with 2 variables