Drawing compound inequalities in Winplot
Graphing Compound Inequalities in Winplot
To graph -2 < x < 3
Open Winplot
Click View, 2-dim
View, grid, on the right of “axes” select “x”, click apply
View, View…, select “set corners”, left = -5.5, right = 5.5, click apply
Equa, segment, (x,y)
x1=-2, y1=0, x2=3, y2=0, pen width=3, points=check mark, OK
In “inventory” window (if window not showing, click Equa, Inventory)
Select (x,y)=(-2,0), click edit, select “circle”, dot size = 6, OK
Select (x,y)=(3,0), click edit, dot size = 6, OK
Resize the window containing the number line by placing cursor at the bottom of the window until a double arrow appears, then drag up until reach a good minimum size
File, copy to clipboard
In Word or other document, Edit, Paste
To graph x < 1 or x > 4
Open Winplot
Click View, 2-dim
View, grid, on the right of “axes” select “x”, click apply
View, View…, select “set corners”, left = -5.5, right = 5.5, click apply
Equa, segment, (x,y)
x1=-5.5, y1=0, x2=1, y2=0, pen width=3, OK
In “inventory” window (if window not showing, click Equa, Inventory)
Select “dupl”, answer “no”
x1=4, y1=0, x2=5.5, y2=0, pen width=3, OK
Equa, point, (x,y)
x=1, y=0, select “circle”, dot size = 6, OK
Equa, point, (x,y)
x=4, y=0, select “solid”, dot size = 6, OK
Resize the window containing the number line by placing cursor at the bottom of the window until a double arrow appears, then drag up until reach a good minimum size
File, copy to clipboard
In Word or other document, Edit, Paste
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