document.write( "Question 1070900: he system of equations may be solved by hand calculation or by using the crossing-graphs method.\r
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document.write( "Solve the following system using the crossing-graphs method. (Round your answers to two decimal places.)
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document.write( "−9x + 21y = 79
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document.write( "13x + 17y = 4
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document.write( "(x,y) = ( ______ , ________ ) \n" );
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Algebra.Com's Answer #685882 by Theo(13342)![]() ![]() You can put this solution on YOUR website! i believe what you call the crossing graphs method is simply the intersection of the graphs of each equation.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your two equations are:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-9x +21y = 79 \n" ); document.write( "13x + 17y = 4\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "graph each equation on the same graph and then find out where the graph of both equations intersects.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your graph would look something like this:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " ![]() \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "note that some graphing software allows you to enter the equations as is and others require you to solve for y.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "i did it both ways as shown on the graph.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "there are two equations for the red graph and two equations for the blue graph.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "since the equations are identical, the same line is drawn for both equations of the same color.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |