document.write( "Question 56680: solve by graphing.
\n" ); document.write( "x-y=2
\n" ); document.write( "3x-3y=6
\n" ); document.write( "

Algebra.Com's Answer #38461 by funmath(2933)\"\" \"About 
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solve by graphing.
\n" ); document.write( "L1) x-y=2
\n" ); document.write( "L2) 3x-3y=6
\n" ); document.write( ":
\n" ); document.write( "For L1)
\n" ); document.write( "Let x=0 and solve for y, this is your y-intercept:
\n" ); document.write( "0-y=2
\n" ); document.write( "-y=2
\n" ); document.write( "-(-y)=-(2)
\n" ); document.write( "y=-2
\n" ); document.write( "Plot (0,-2)
\n" ); document.write( "Let y=0 and solve for x, this is your x-intercept:
\n" ); document.write( "x-(0)=2
\n" ); document.write( "x=2
\n" ); document.write( "Plot (2,0)
\n" ); document.write( "Connect the dots and you have a line that looks like:
\n" ); document.write( "\"graph%28300%2C200%2C-10%2C10%2C-10%2C10%2Cx-2%29\"
\n" ); document.write( "For L2)
\n" ); document.write( "Let x=0 and solve for y, this is your y-intercept of this line:
\n" ); document.write( "3(0)-3y=6
\n" ); document.write( "-3y=6
\n" ); document.write( "-3y/3=6/-3
\n" ); document.write( "y=-2
\n" ); document.write( "Plot (0,-2) Notice that is the same y intercept that L1) had:
\n" ); document.write( "Let y=0 and solve for x, this is your x-intercept:
\n" ); document.write( "3x-3(0)=6
\n" ); document.write( "3x=6
\n" ); document.write( "3x/3=6/3
\n" ); document.write( "x=2
\n" ); document.write( "Plot (2,0) Notice that is the same x-intercept that L1 had. L1 is lying right ontop of L2, in other words they graphically are the same line. The solution is all real numbers:
\n" ); document.write( "\"graph%28300%2C200%2C-10%2C10%2C-10%2C10%2Cx-2%2C%28-3x%2B6%29%2F-3%29\"
\n" ); document.write( "Happy Calculating!!!
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