document.write( "Question 118156: I know this may not be the right topic for the problem but i guessed.\r
\n" );
document.write( "\n" );
document.write( "which is a solution of the system? -2x+y less than and equal to 8
\n" );
document.write( " x-3y greater 9\r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "a. (0,-3)
\n" );
document.write( "b. (0,9)
\n" );
document.write( "c. both a and b
\n" );
document.write( "d. neither a nor b
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #86264 by ilana(307) ![]() You can put this solution on YOUR website! For a, x=0 and y=-3. For b, x=0 and y=9. So you need to plug in each pair and see which makes both inequalities true. \n" ); document.write( "For a, -2x+y = 0-3 = -3. This is less than or equal to 8, so that one works. \n" ); document.write( "Again for a, x-3y = 0+9 = 9, which is not greater than 9. So a does not work. \n" ); document.write( "For b, -2x+y = 0+9 = 9, which is not less than or equal to 8, so b already fails. \n" ); document.write( "So the answer is d, neither will work. \n" ); document.write( " |