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 :) \n" );
document.write( "
Algebra.Com's Answer #12832 by longjonsilver(2297) 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 \n" ); document.write( " \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 \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I shall do the first set for you, as an example.\r \n" ); document.write( " \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 \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You choose 2 other x-values (as a minimum number of values) and find the y-values.\r \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "jon. \n" ); document.write( " \n" ); document.write( " |