document.write( "Question 341282: Graph the inequality: 2x-5y>10\r
\n" );
document.write( "\n" );
document.write( "not really sure where to go on this the teacher went over inequality's in class but i just got more confused the more she said \n" );
document.write( "
Algebra.Com's Answer #244386 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 2x-5y>10 \n" ); document.write( "Just solve the inequality as you are solving an equation with =. There is absolutely no difference. Keep on putting the < or >. till the end. \n" ); document.write( ".. \n" ); document.write( "However when you multiply or divide both sides of the equation by a negative sign the inequatlity reverses.\r \n" ); document.write( "\n" ); document.write( "For example \n" ); document.write( "-2x > 8 \n" ); document.write( "to get value of x \n" ); document.write( "we divide by -2 \n" ); document.write( "-2x/-2 < 8/-2 \n" ); document.write( "x<-4 ( The sign has reversed) \n" ); document.write( "Similary for multiplication with a negative number. \n" ); document.write( ".. \n" ); document.write( "Your problem \n" ); document.write( "2x-5y>10 \n" ); document.write( "add -2x to both sides \n" ); document.write( "2x-2x-5y> 10-2x \n" ); document.write( "-5y>10-2x \n" ); document.write( "divide by -5 \n" ); document.write( "-5y/-5 < 10/-5 -2x/-5 ( the sign has reversed) \n" ); document.write( "y<-2+(2/5)x \n" ); document.write( "y<(2/5)x-2 \n" ); document.write( "... \n" ); document.write( "Find the value of y for 3 or more values of x \n" ); document.write( "The line will be a dotted one. All values below the line are solutions to the inequality. because y < than something. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |