document.write( "Question 98619: I have tried but to no avail to solve the following problem:\r
\n" );
document.write( "\n" );
document.write( "Find the coordinates of the vertices of the figures formed by:\r
\n" );
document.write( "\n" );
document.write( "y≤x+2, x+y≤6, and y≥-2. \n" );
document.write( "
Algebra.Com's Answer #71783 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! working with them as equalities makes things easier ... y=x+2, x+y=6, y=-2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the vertices with y=-2 are easiest, just substitute -2 into the other equations\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-2=x+2 ... -4=x, so vertex is (-4,-2) ... x+(-2)=6 ... x=8, so vertex is (8,-2)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "find the last vertex with a simultaneous solution\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y=x+2 so x+(x+2)=6 ... 2x+2=6 ... x=2 ... y=2+2 ... y=4 ... vertex is (2,4) \n" ); document.write( " |