document.write( "Question 55256: how to graph an equation on graph paper?
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Algebra.Com's Answer #37506 by Edwin McCravy(20086) $\"\"$ $\"About$
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how to graph an equation on graph paper?\r\n" );
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document.write( "Make up some arbitrary values for x.  There is no limit to\r\n" );
document.write( "how many to select.  The more you select the more accurate\r\n" );
document.write( "your graph will be.  Of course if you know it is a \r\n" );
document.write( "straight line then you can get away with choosing only 2. \r\n" );
document.write( "But you must know that it is going to be a straight line \r\n" );
document.write( "to get away with selecting only 2.  Even when you know it\r\n" );
document.write( "is going to be a straight line you should select at least \r\n" );
document.write( "3 values so that if you made an error on one of them, you \r\n" );
document.write( "would discover your error if they did not all three lie in \r\n" );
document.write( "a straight line.  But if the graph is a curve, then you \r\n" );
document.write( "must select more values. \r\n" );
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document.write( "Substitute each value for x in the equation.\r\n" );
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document.write( "Solve the resulting equation for y\r\n" );
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document.write( "Each time you substitute an arbitrary number for x,\r\n" );
document.write( "write a left parenthesis \"(\" followed by the x-value \r\n" );
document.write( "you substituted, followed by a comma \",\" followed by\r\n" );
document.write( "the y-value you got when you solved for y, followed\r\n" );
document.write( "by a right parenthesis \")\".   This gives you an\r\n" );
document.write( "ordered pair like this (8,-3) or (-7,2) or (4,6), or\r\n" );
document.write( "(0,7), etc.\r\n" );
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document.write( "Then to plot a point put a dot at the point which is\r\n" );
document.write( "vertically in line with (i.e., directly above or below\r\n" );
document.write( "or on) the x-value on the x-axis, and also horizontally \r\n" );
document.write( "in line with (beside, i.e., directly right, left of,\r\n" );
document.write( "or on) the y-value on the y-axis.\r\n" );
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document.write( "When you finish, draw a smooth curve or line dot-to-dot\r\n" );
document.write( "starting from the point nearest the left side of the\r\n" );
document.write( "paper and always moving away from the left hand side of\r\n" );
document.write( "the paper and closer to the right-hand side of the\r\n" );
document.write( "paper.   \r\n" );
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document.write( "Edwin
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