document.write( "Question 679822: please help me graph the solutions of the system: y<2x-6 and 2x+3y<3 and find the point of intersection. \n" ); document.write( "
Algebra.Com's Answer #422073 by ReadingBoosters(3246)\"\" \"About 
You can put this solution on YOUR website!
Starting with \"highlight%28y%3C2x-6%29\"
\n" ); document.write( "The y intercept is -6
\n" ); document.write( "Plot (0, -6)
\n" ); document.write( "The x intercept is where y = 0
\n" ); document.write( "0=2x-6
\n" ); document.write( "6=2x
\n" ); document.write( "\"6%2F2\"=x
\n" ); document.write( "Plot (3, 0)
\n" ); document.write( "Draw a dashed line through the intercepts, so at to NOT include the points on the line.
\n" ); document.write( "Lightly shade the area below the line, since y is <
\n" ); document.write( "...
\n" ); document.write( "Using 2x+3y<3
\n" ); document.write( "Isolate the y variable
\n" ); document.write( "3y < -2x+3
\n" ); document.write( "y < \"%28-2%2F3%29x++%2B+3%2F3\"
\n" ); document.write( "\"highlight_green%28y%3C%28-2%2F3%29x%2B1%29\"
\n" ); document.write( "The y intercep is 1
\n" ); document.write( "Plot (0,1)
\n" ); document.write( "The x intercept is where y = 0
\n" ); document.write( "0 = \"%28-2%2F3%29x%2B1\"
\n" ); document.write( "-1 = \"-2%2F3\"x
\n" ); document.write( "x = \"3%2F2\"
\n" ); document.write( "Plot (\"3%2F2\", 0)
\n" ); document.write( "Draw a dashed line through these intercepts. It is dashed so as to NOT include the points on the line. Lightly shade the area below the line since y is <.
\n" ); document.write( "...
\n" ); document.write( "To find the intersection, set the equations equal to each other.
\n" ); document.write( "\"2x-6+=+%28-2%2F3%29x+%2B+1\"
\n" ); document.write( "\"2x+%2B+%282%2F3%29x+=+1+%2B+6\"
\n" ); document.write( "\"%288%2F3%29x+=+7\"
\n" ); document.write( "\"x+=+7%283%2F8%29+=+21%2F8\"
\n" ); document.write( "Substitute this x variable into either of the equations to solve for y
\n" ); document.write( "y = 2\"21%2F8\" - 6 = \"%2821%2F4%29+-+6%284%2F4%29+=+-3%2F4\"
\n" ); document.write( "The intersection point is (\"21%2F8\",\"-3%2F4\")
\n" ); document.write( "...
\n" ); document.write( "The area that is shaded for both inequalities is the solution
\n" ); document.write( "...
\n" ); document.write( "\"graph%28300%2C200%2C-10%2C10%2C-10%2C10%2Cy%3C2x-6%2Cy%3C%28-2%2F3%29x%2B1%29\"
\n" ); document.write( ".....................
\n" ); document.write( "Delighted to help; feel free to email if you have further questions.
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