Question 85081: Anyone know about interval notation and graphing it
-1 < 3-2x< 11 there is a line under the sign after -1.
_ Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! interval notation and graphing it
-1 <= 3-2x< 11
Subtract 3 along the line to get:
-4 <= -2x < 8
Divide thru by -2 to get:
2>=x>-4
Rewrite as:
-4
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To graph:
Draw a number line and plot x=-4 and x=2 appropriately.
Draw an open circle around point x=2
Draw a darkened circle around point x=-4
Darken all the points between x=-4 and x=2
All the dard points are the graph you want.
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cheers,
Stan H.
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