document.write( "Question 23406: Could you please help me find the intercepts of the equation, and plot the graphs, showing the coordinates where the graphs intersect? \r
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document.write( "Here it is:
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document.write( "2x+y=8
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document.write( "5x-3y=15\r
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document.write( "Thanks so much for your help.\r
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Algebra.Com's Answer #12242 by venugopalramana(3286) You can put this solution on YOUR website! SEE THE FOLLOWING EXAMPLE AND FOLLOW THE METHOD TO SOLVE YOUR PROBLEM.COME BACK IF NEEDED \n" ); document.write( "INTERCEPTS ARE THE DISTANCE FROM ORIGIN TO THE POINT WHERE THE LINE CUTS THE X AXIS (CALLED X INTERCEPT);AND THE Y AXIS (CALLED Y INTERCEPT)ON THE X AXIS Y=0 .SO WE GET X INTERCEPT BY PUTTING Y=0 IN THE GIVEN EQN.FOR EX.IN 2X+Y=8,IF WE PUT Y=0 WE GET 2X=8 OR X=8/2=4.HENCE 4 IS THE X INTERCEPT. \n" ); document.write( "ON Y AXIS X=0.SO WE GET Y INTERCEPT BY PUTTING X=0 IN THE GIVEN EQN.FOR EX.IN 2X+Y=8,IF WE PUT X=0 WE GET Y=8.HENCE 8 IS THE Y INTERCEPT \n" ); document.write( "-----------------------------------------------------------------------\r \n" ); document.write( "\n" ); document.write( "Solve the system of linear equations by graphing: x+2y=5.. \n" ); document.write( "OR 2Y=5-X..OR Y=(5-X)/2 \n" ); document.write( " x-y=2... \n" ); document.write( "OR Y=X-2 \n" ); document.write( "that is the first one \n" ); document.write( " the second one is: 4x-y=6 \n" ); document.write( " 3x+y=1\r \n" ); document.write( "\n" ); document.write( "SOLVE BY GRAPHING MEANS DRAW THE GRAPHS AND FIND THE 2 GRAPHS OF 2 EQUATIONS CUT EACH OTHER .THAT IS THE SOLUTION.LET ME SHOW YOU THE FIRST PROBLEM. THEN YOU CAN DO SECOND PROBLEM THE SAME WAY \n" ); document.write( "LET X=.........................0......1......2........3.........4......5....ETC. \n" ); document.write( "Y=(5-X)/2..IN FIRST EQN........5/2....2......3/2......1.........1/2....0...ETC \n" ); document.write( "Y=(X-2).....IN SECOND EQN.......-2....-1......0........1.........2......3...ETC \n" ); document.write( "THE GRAPHS WILL LOOK LIKE THIS \n" ); document.write( " \n" ); document.write( "WE FIND THAT THE TWO GRAPHS ARE CUTTING AT X=3 AND Y=1.HENCE THAT IS THE SOLUTION..YOU CAN CHECK BACK \n" ); document.write( "EQN.I.....X+2Y=3+2*1=3+2=5..OK \n" ); document.write( "EQN.II.....X-Y=3-1=2........OK. \n" ); document.write( " \n" ); document.write( " |