document.write( "Question 548521: Find an equation of the line parallel to the graph of 4x+2y=8 and containing the ordered pair (-1,5) \n" ); document.write( "
Algebra.Com's Answer #357075 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 4 x + 2 y = 8 \n" ); document.write( "Find the slope of this line \n" ); document.write( "make y the subject \n" ); document.write( "2 y = -4 x + 8 \n" ); document.write( "Divide by 2 \n" ); document.write( " y = -2 x + 4 \n" ); document.write( "Compare this equation with y=mx+b \n" ); document.write( "slope m = -2 \n" ); document.write( "The slope of a line parallel to the above line will be the same \n" ); document.write( "The slope of the required line will be -2 \n" ); document.write( "m= -2 ,point (-1,5) \n" ); document.write( "Find b by plugging the values of m & the point in \n" ); document.write( "y=mx+b \n" ); document.write( "5 = 2 + b \n" ); document.write( "b= 3 \n" ); document.write( "m= -2 \n" ); document.write( "Plug value of the slope and b in y = mx +b \n" ); document.write( "The required equation is y=-2x+ 3 \r \n" ); document.write( "\n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |