document.write( "Question 212880: solve the system of equations by graphing. then classify the system
\n" );
document.write( "x+y=13
\n" );
document.write( "x-y=5 \n" );
document.write( "
Algebra.Com's Answer #160821 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! To graph equations in standard form as these are, I think the easiest way to graph is the TWO-Intercept Method. Find the intercepts for each equation, and graph them:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x+y=13\r \n" ); document.write( "\n" ); document.write( "If x=0, then y=13 \n" ); document.write( "If y=0, then x=13\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x-y=5 \n" ); document.write( "If x=0, then y=-5 \n" ); document.write( "If y=0, then x=5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now graph these points and connect the dots!!! It should look like this:\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The lines intersect in a single point, so the system is said to be \"Independent\". The solution is the point (9,4).\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R^2 \n" ); document.write( " \n" ); document.write( " |