How do I plot this equation on a graph? y=|x|+3
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document.write( "Graphs of absolute value functions are V-shaped graphs.\r\n" );
document.write( "We first find the vertex (the sharp point of the \"V\"}\r\n" );
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document.write( "1. Set what's inside the absolute value bars = 0 and solve\r\n" );
document.write( " for x:\r\n" );
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document.write( " x = 0\r\n" );
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document.write( "2. Substitute that into the equation:\r\n" );
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document.write( " y=|x|+3\r\n" );
document.write( " y=|0|+3\r\n" );
document.write( " y=0+3\r\n" );
document.write( " y=3\r\n" );
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document.write( "3. Plot the vertex (0,3)\r\n" );
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document.write( "4. Get a point on the right of \r\n" );
document.write( " the vertex:\r\n" );
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document.write( " Let x=1\r\n" );
document.write( " y=|x|+3\r\n" );
document.write( " y=|1|+3\r\n" );
document.write( " y=1+3\r\n" );
document.write( " y=4\r\n" );
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document.write( " That's one point (1,4). Plot it:\r\n" );
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document.write( "5. Get a point on the left of \r\n" );
document.write( " the vertex:\r\n" );
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document.write( " Let x=-1\r\n" );
document.write( " y=|x|+3\r\n" );
document.write( " y=|-1|+3\r\n" );
document.write( " y=1+3\r\n" );
document.write( " y=4\r\n" );
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document.write( " That's another point (-1,4). Plot it:\r\n" );
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document.write( "Draw the V-shaped graph:\r\n" );
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document.write( "Edwin
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