How to plot inequalities $x+2y≥4$ ?

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Answer 1 · 2015-04-17T00:24:04

Determine any two points on the line of the equation $x+2y=4$

(I chose the x and y intercepts $(0,2)$ and $(4,0$ as being easy to evaluate).

Draw a straight line that goes through those two points.

For $x+2y >= 4$ the solution points are on and above this line.
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How to plot inequalities x+2y≥4x+2y≥4?