document.write( "Question 631187: Solve the system of linear equations by graphing
\n" );
document.write( "4x+y = 0
\n" );
document.write( "3x + y = 2\r
\n" );
document.write( "\n" );
document.write( "Please explain how you determine the points to plot on the graph \n" );
document.write( "
Algebra.Com's Answer #397410 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Solve the system of linear equations by graphing \n" ); document.write( "4x+y = 0 \n" ); document.write( "3x + y = 2 \n" ); document.write( "---------------- \n" ); document.write( "Linear equations' graphs are straight lines, so you need 2 points. \n" ); document.write( "4x+y = 0 \n" ); document.write( "y = -4x \n" ); document.write( "Pick 2 values for x and find y, any 2 \n" ); document.write( "x = 0, y = 0 --> (0,0) \n" ); document.write( "x = 2, y = -8 --> (2,-8) \n" ); document.write( "Plot the 2 points, draw a line thru them. \n" ); document.write( "---------- \n" ); document.write( "3x + y = 2 \n" ); document.write( "y = -3x + 2 \n" ); document.write( "Do the same. \n" ); document.write( "Where they intersect is the solution to the system, x & y values that fit both equations.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |