document.write( "Question 24155: could somebody help me with this linear equation:
\n" ); document.write( "Solve by graphing 4x-y=6
\n" ); document.write( " 3x+y=1\r
\n" ); document.write( "\n" ); document.write( "this would be greatly appreciated :)
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Algebra.Com's Answer #12832 by longjonsilver(2297)\"\" \"About 
You can put this solution on YOUR website!
your equations are\r
\n" ); document.write( "\n" ); document.write( "y = 4x-6
\n" ); document.write( "y = 1-3x\r
\n" ); document.write( "\n" ); document.write( "by re-arranging the ones you quoted.\r
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\n" ); document.write( "\n" ); document.write( "You need to plot both equations...both are straight lines. You need to DECIDE upon x-values and for each of these, find the corresponding y-value. Once you have 2 sets of (x,y) values - one for each equation, then plot them.\r
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\n" ); document.write( "\n" ); document.write( "Being straight lines, in theory you need just 2 points and join them up with a ruler. However, you might have calculated one set wrong, so safer to do at least 3 sets of coordinates.\r
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\n" ); document.write( "\n" ); document.write( "I shall do the first set for you, as an example.\r
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\n" ); document.write( "\n" ); document.write( "I choose x=0 (nice and simple)\r
\n" ); document.write( "\n" ); document.write( "so eqn 1 becomes y = 4(0)-6
\n" ); document.write( "--> y = 0 -6
\n" ); document.write( "--> y = -6\r
\n" ); document.write( "\n" ); document.write( "so coordinates are (0,-6)\r
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\n" ); document.write( "\n" ); document.write( "Now, equn2 becomes y = 1-3(0)
\n" ); document.write( "--> y = 1-0
\n" ); document.write( "--> y = 1\r
\n" ); document.write( "\n" ); document.write( "so coordinates are (0,1)\r
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\n" ); document.write( "\n" ); document.write( "You choose 2 other x-values (as a minimum number of values) and find the y-values.\r
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\n" ); document.write( "\n" ); document.write( "Draw the axes on your graph
\n" ); document.write( "Plot the 2 lines
\n" ); document.write( "Where the 2 lines cross is the answer...quote the x and y values of that point.\r
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\n" ); document.write( "\n" ); document.write( "jon.
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