document.write( "Question 1062882: Solve the following system graphically. Be sure to check your solution. If the system has an infinite number of solutions, use set-builder notation to write the solution set. If the system has no solution, state this.\r
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Algebra.Com's Answer #677874 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "\"system%284y=x%2B4%2C%0D%0Ax=expr%282%2F3%29y%2B8%2F3%29\"\r\n" );
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document.write( "Get a table of values for the first equation:\r\n" );
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document.write( "\"4y=x%2B4\"     \"4y=x%2B4\"      \"4y=x%2B4\"\r\n" );
document.write( "Let x=0     Let y=0     Let y=-1 \r\n" );
document.write( "\"4y=0%2B4\"     \"4%280%29=x%2B4\"    \"4%28-1%29=x%2B4\"\r\n" );
document.write( "\"4y=4\"       \"0=x%2B4\"       \"-4=x%2B4\"\r\n" );
document.write( "\"y=1\"        \"-4=x\"        \"-8=x\"\r\n" );
document.write( "point (0,1)      point (-4,0)      point (-8,-1) \r\n" );
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document.write( "Plot those three points and draw a line through them\r\n" );
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document.write( "The other equation contains fractions, so it will be\r\n" );
document.write( "easier if we first multiply every term in it through by the\r\n" );
document.write( "LCD of 3:\r\n" );
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document.write( "\"x=expr%282%2F3%29y%2B8%2F3%29\"\r\n" );
document.write( "\"3x=2y%2B8\"\r\n" );
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document.write( "\"3x=2y%2B8\"     \"3x=2y%2B8\"     \"3x=2y%2B8\"\r\n" );
document.write( "Let x=0     Let y=-1     Let x=-2\r\n" );
document.write( "\"3%280%29=2y%2B8\"   \"3x=2%28-1%29%2B8\"  \"3%28-2%29=2y%2B8\"\r\n" );
document.write( "\"0=2y%2B8\"      \"3x=-2%2B8\"     \"-6=2y%2B8\"\r\n" );
document.write( "\"-8=2y\"       \"3x=6\"        \"-14=2y\"\r\n" );
document.write( "\"-4=y\"        \"x=2\"         \"-7=y\"\r\n" );
document.write( "point (0,-4)      point (2,-1)      point (-2,-7) \r\n" );
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document.write( "Now notice the point where the two lines cross. From\r\n" );
document.write( "that point draw a vertical line directly down to the \r\n" );
document.write( "x-axis, and a horizontal line over to the y-axis like \r\n" );
document.write( "this:\r\n" );
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document.write( "We see that the vertical line hits the x-axis at 4.\r\n" );
document.write( "That means x=4 is the answer for x.\r\n" );
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document.write( "We see that the horizontal line hits the y-axis at 2.\r\n" );
document.write( "That means y=2 is the answer for y.\r\n" );
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document.write( "Solution:  x=4, y=2.\r\n" );
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document.write( "Edwin
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