document.write( "Question 202570This question is from textbook Algebra Structure and Mehtod
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document.write( ": I get confused on the graphing which side is suppose to be shaded
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document.write( "Graph y>_ 2x + 1
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Algebra.Com's Answer #152763 by RAY100(1637) ![]() You can put this solution on YOUR website! The easiest way to define which side of the line is the \"area of interest\" is to use test points.\r \n" ); document.write( "\n" ); document.write( "Just pick a point on either side of the line, substitute into inequality, and see if it is true,,,,,or not. The true side is the area of concern\r \n" ); document.write( "\n" ); document.write( "In this case, line goes thru (0,1) so lets pick (0,2) which is above the line. y>= 2x+1, subst,, 1>= 2(0)+1,,,true statement, 1=1 so this is correct side.\r \n" ); document.write( "\n" ); document.write( "If we chose a point on the other side of the line(bottom), like (0,0) \n" ); document.write( "y>=2x+1, 0>= 2(0) +1,,,0>=1,,,not true. The area is on the other side from this point. \n" ); document.write( ". \n" ); document.write( "Sometimes it is obvious that area is above or below,,to right or left,,,,but a quick test point is good confirmation. \n" ); document.write( " \n" ); document.write( " |