document.write( "Question 175104: Solving Systems of Equations Graphically. Please solve this problem for me. I keep getting the wrong graph, therefore I must not understand how to graph these equations: y - x = 1 & y + x = 3. Thank you, Charlie \n" ); document.write( "
Algebra.Com's Answer #130236 by actuary(112)![]() ![]() ![]() You can put this solution on YOUR website! Rewrite each equation in slope & y-intercept form\r \n" ); document.write( "\n" ); document.write( "y-x=1 Equation #1 \n" ); document.write( "y+x=3 Equation #2\r \n" ); document.write( "\n" ); document.write( "Equation #1 in slope & y-intercept form\r \n" ); document.write( "\n" ); document.write( "y=x+1\r \n" ); document.write( "\n" ); document.write( "Equation #2 in slope & y-intercept form\r \n" ); document.write( "\n" ); document.write( "y=-x+3\r \n" ); document.write( "\n" ); document.write( "The graphs of the two lines are\r \n" ); document.write( "\n" ); document.write( "From the graph it appears that the solution (point of intersection) is (1,2)\r \n" ); document.write( "\n" ); document.write( "It is always a good idea to check your answer. Substitute the solution (1,2) into the equations to see if equality still is the case.\r \n" ); document.write( "\n" ); document.write( " |