document.write( "Question 277186: please help show my son how to create a graph from the following functions. y=x+5
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Algebra.Com's Answer #201839 by Edwin McCravy(20054)\"\" \"About 
You can put this solution on YOUR website!
please help show my son how to create a graph from the following functions. y=x+5
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document.write( "Start with a set of axes:\r\n" );
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document.write( "\"graph%28400%2C400%2C-10%2C10%2C-10%2C10%29\"\r\n" );
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document.write( "substitute \r\n" );
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document.write( "x = 1 \r\n" );
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document.write( "into that equation\r\n" );
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document.write( "y = (1) + 5\r\n" );
document.write( "y = 1 + 5\r\n" );
document.write( "y = 6\r\n" );
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document.write( "Write the ordered pair (x,y) = (1,6)\r\n" );
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document.write( "Plot that ordered by drawing a vertical green line \r\n" );
document.write( "through 1 on the x axis (since x=1) and a red line \r\n" );
document.write( "through 6 on the y-axis (since y=6), like this:\r\n" );
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document.write( "Mark the point where they cross, and label it \"%22%281%2C6%29%22\"\r\n" );
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document.write( "Now erase the green and red lines.\r\n" );
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document.write( "----\r\n" );
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document.write( "substitute \r\n" );
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document.write( "x = -2 \r\n" );
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document.write( "into that equation\r\n" );
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document.write( "y = (-2) + 5\r\n" );
document.write( "y = -2 + 5\r\n" );
document.write( "y = 3\r\n" );
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document.write( "Write the ordered pair (x,y) = (-2,3)\r\n" );
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document.write( "Plot that ordered by drawing a vertical green line \r\n" );
document.write( "through -2 on the x axis (since x=-2) and a red line \r\n" );
document.write( "through 3 on the y-axis (since y=3), like this:\r\n" );
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document.write( "Mark the point where they cross, and label it \"%22%28-2%2C3%29%22\"\r\n" );
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document.write( "Now erase the green and red lines.\r\n" );
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document.write( "Now draw a blue line through both those points:\r\n" );
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document.write( "That blue line is the graph of the equation \"y=5%2B5\".  Notice that the\r\n" );
document.write( "values I picked for x, 1 and -2 were completely arbitrary!  Picking any \r\n" );
document.write( "value of x will do, You will get different points, but they will always fall\r\n" );
document.write( "right on that same blue line.  The other tutor picked 0 and -5, and (0,5) and\r\n" );
document.write( "(-5,0) are also on this line.\r\n" );
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document.write( "Edwin
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