document.write( "Question 110294: graph the inequality
\n" ); document.write( "y> or = 3x \n" ); document.write( "

Algebra.Com's Answer #80400 by stanbon(75887) $\"\"$ $\"About$

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graph the inequality
\n" ); document.write( "y> or = 3x
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\n" ); document.write( "Graph the boundary line y = 3x
\n" ); document.write( " $\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C3x%29\"$
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\n" ); document.write( "For the inequality, y>3x:
\n" ); document.write( "Pick a test point that is not on the boundary,
\n" ); document.write( "like (0,2)
\n" ); document.write( "Substitute those x/y values into the inequality:
\n" ); document.write( "2>3*0
\n" ); document.write( "2>0
\n" ); document.write( "That is false.
\n" ); document.write( "So the half-plane is not on the side of the boundary
\n" ); document.write( "that contains the point (0,2).
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\n" ); document.write( "Shade the half-plane on the other side of the line.
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\n" ); document.write( "The boundary plus the half-plane together is the graph
\n" ); document.write( "for y>=3x
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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