document.write( "Question 23362: could somebody PLEASE show me how to graph this inequality?\r
\n" ); document.write( "\n" ); document.write( "y>_ 2x+3 and another equality I need help with is y>-3x-1 these are really difficult for me to understand how to graph. PLEASE somebody help. thank you
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Algebra.Com's Answer #12134 by rapaljer(4671)\"\" \"About 
You can put this solution on YOUR website!
NOTE: If you have trouble graphing a straight line, with slope and y-intercept, see my NEW lesson plans in algebra.com for this topic under the heading of \"Graphing.\"\r
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\n" ); document.write( "\n" ); document.write( "For the inequality \"y+%3E=+2x%2B3\", first graph the equation \"y+=+2x%2B3\", which is in slope-intercept form, with y-intercept at y=3, and slope = \"+%28rise%29%2F%28run%29=+2%2F1\". Begin by graphing the y-intercept by going up 3 units on the y-axis and put a point. From this point go UP 2 units, then go 1 unit to the right, and put another point. Connect the points, and that's your graph, which should look like this: \r
\n" ); document.write( "\n" ); document.write( "\"graph+%28400%2C400%2C+-10%2C10%2C-10%2C10%2C+2x%2B3%29\"\r
\n" ); document.write( "\n" ); document.write( "Now because the problem is \"y+%3E=+2x%2B3\", with a >=, this means to shade ABOVE the line, and INCLUDE THE LINE, so draw the line SOLID. I can't do that shading with algebra.com, so you will have to do that for yourself.
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\n" ); document.write( "\n" ); document.write( "For the inequality \"y+%3E+-3x-1\", first graph the equation \"y+=+-3x-1\", which is in slope-intercept form, with y-intercept at y=-1, and slope = \"+%28rise%29%2F%28run%29=+-3%2F1\". Begin by graphing the y-intercept by going down 1 units on the y-axis and put a point. From this point go DOWN 3 units, then go 1 unit to the right, and put another point. Connect the points, and that's your graph, which should look like this: \r
\n" ); document.write( "\n" ); document.write( "\"graph+%28400%2C400%2C+-10%2C10%2C-10%2C10%2C+-3x-1%29\"\r
\n" ); document.write( "\n" ); document.write( "Now because the problem is \"y+%3E+-3x-1\", with a >, this means to shade ABOVE the line, but do NOT INCLUDE THE LINE, so draw the line DOTTED. AS in the previous problem I can't draw the dotted line and I can't shade the graph in algebra.com, so you will have to do that for yourself.\r
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\n" ); document.write( "\n" ); document.write( "R^2 at SCC
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