document.write( "Question 45411: Can you show me the steps to solve this problem?\r
\n" );
document.write( "\n" );
document.write( "Find the maximum value of p=5x+2y under the following conditions.
\n" );
document.write( "x>0 y>0 2x+y<10 x+y<7\r
\n" );
document.write( "\n" );
document.write( "All symbols are greater than or equal to, or less than and equal to.
\n" );
document.write( "Thanks in advance. \n" );
document.write( "
Algebra.Com's Answer #30221 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Find the maximum value of p=5x+2y under the following conditions. \n" ); document.write( "x>0 y>0 2x+y<10 x+y<7\r \n" ); document.write( "\n" ); document.write( "Draw an x,y coordinate system. \n" ); document.write( "x>0 and y>0 mean we are looking at the 1st quadrant.\r \n" ); document.write( "\n" ); document.write( "Graph y<-2x+10 \n" ); document.write( "Graph y< -x+7 \n" ); document.write( "Find the coordinates of the four intersection points, as follows: \n" ); document.write( "Find the intersection of the two lines, y=-2x+10 and y=-x+7; it is (3,4) \n" ); document.write( "Find the intersection of y=-2x+10 and y=0; it is (5,0) \n" ); document.write( "Find the intersection of y=-x+7 and x=0; it is (0,7) \n" ); document.write( "Find the intersection of x=0 and y=0; it is (0,0)\r \n" ); document.write( "\n" ); document.write( "Hopefully you can see these intersection points.\r \n" ); document.write( "\n" ); document.write( "Now, evaluate p=5x+2y with the values of these intersection points, as follows: \n" ); document.write( "(0,0); p=5(0)+2(0)=0 \n" ); document.write( "(0,7): p=5(0)+2(7)=14 \n" ); document.write( "(5,0): p=5(5)+2(0)=25 \n" ); document.write( "(3,4): p=5(3)2(4)=23\r \n" ); document.write( "\n" ); document.write( "From this you can see that the maximum value of p is p=25 and \n" ); document.write( "that occurs when x=5 and y=0\r \n" ); document.write( "\n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |