SOLUTION: graph the inequality y> or = 3x

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Question 110294: graph the inequality
y> or = 3x

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
graph the inequality
y> or = 3x
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Graph the boundary line y = 3x
graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C3x%29
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For the inequality, y>3x:
Pick a test point that is not on the boundary,
like (0,2)
Substitute those x/y values into the inequality:
2>3*0
2>0
That is false.
So the half-plane is not on the side of the boundary
that contains the point (0,2).
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Shade the half-plane on the other side of the line.
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The boundary plus the half-plane together is the graph
for y>=3x
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Cheers,
Stan H.