document.write( "Question 60896: how can i solve the system by graphing.
\n" ); document.write( " x + y = 4
\n" ); document.write( " –x + y = 2
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #41847 by funmath(2933) $\"\"$ $\"About$

You can put this solution on YOUR website!
how can i solve the system by graphing.
\n" ); document.write( "E1: x + y = 4
\n" ); document.write( "E2: –x + y = 2
\n" ); document.write( ":
\n" ); document.write( "For E1, let x=0 and y=?
\n" ); document.write( "0+y=4
\n" ); document.write( "y=4 Plot (0,4)
\n" ); document.write( "Now let y=0 and x=?
\n" ); document.write( "x+0=4
\n" ); document.write( "x=4 Plot (4,0)
\n" ); document.write( "Connect your points and you have this line:
\n" ); document.write( " $\"graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C-x%2B4%29\"$
\n" ); document.write( "For E2, let x=0 and y=?
\n" ); document.write( "-0+y=2
\n" ); document.write( "y=2 Plot (0,2)
\n" ); document.write( "Now let y=0 and x=?
\n" ); document.write( "-x+0=2
\n" ); document.write( "-x/-1=2/-1
\n" ); document.write( "x=-2 Plot (-2,0)
\n" ); document.write( "Connect these points and you have a second line.
\n" ); document.write( " $\"graph%28300%2C200%2C-10%2C10%2C-10%2C10%2C-x%2B4%2Cx%2B2%29\"$
\n" ); document.write( "The solution is their point of intersection: (1,3)
\n" ); document.write( "Happy Calculating!!!
\n" ); document.write( " \n" ); document.write( "

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