document.write( "Question 206577: What is the basic method for graphing a linear equation> \n" ); document.write( "

Algebra.Com's Answer #156121 by stanbon(75887) $\"\"$ $\"About$

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What is the basic method for graphing a linear equation>
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\n" ); document.write( "Two methods are taught in the schools.
\n" ); document.write( "1st method:Plot two points and draw a line thru them.
\n" ); document.write( "Example:
\n" ); document.write( "y = 3x+4\r
\n" ); document.write( "\n" ); document.write( "If x = 3, y = 3*0+4 = 4, giving you point (3,4)
\n" ); document.write( "If x = -1, y = 3*-1+4 = 1, giving you point (-1,1)
\n" ); document.write( " $\"graph%28400%2C300%2C-10%2C10%2C-10%2C10%2C3x%2B4%29\"$
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\n" ); document.write( "2nd method: Plot the y-intercept and apply the slope to get a 2nd point.
\n" ); document.write( "Example:
\n" ); document.write( "y = 3x+4
\n" ); document.write( "The slope is 3 and the y-intercept is 4
\n" ); document.write( "Put a point at (0,4)
\n" ); document.write( "Since the slope is 3/1, move your pencil 1 to the right and 3 up
\n" ); document.write( "to put a point at (1,7). Then draw the line thru the two points.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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