document.write( "Question 1196102: Sketch the graph of f(x)=-x \n" ); document.write( "

Algebra.Com's Answer #828805 by ikleyn(52794) $\"\"$ $\"About$

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document.write( "The standard method is to use a pencil, a graph paper and a straightedge.\r\n" );
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document.write( "Using the function definition, find the coordinates of any two points on the line.\r\n" );
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document.write( "For example, take x = 0 and determine f(x) = f(0) = 0, according to the function.\r\n" );
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document.write( "        Next take x = 1 and determine f(x) = f(1) = -1, according to the function.\r\n" );
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document.write( "So, the two points are (0,0) and (1,-1).\r\n" );
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document.write( "Plot these points in a graph paper.\r\n" );
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document.write( "Next take the straightedge and draw a straight line through the two points.\r\n" );
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document.write( "It is how it was touched in schools for hundreds years.\r\n" );
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document.write( "There is another, more modern way (we live in XXI century).\r\n" );
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document.write( "Go to website www.desmos.com/calulator.\r\n" );
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document.write( "Find there free of charge plotting tool for common use.\r\n" );
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document.write( "Print the equation of the function in the port window.\r\n" );
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document.write( "Get your plot in the next second.\r\n" );
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