document.write( "Question 576139: Write an equation in standard form for the line perpendicular to 8x+y=5 that passes through the point (3, 4) \n" ); document.write( "
Algebra.Com's Answer #369740 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 8 x + 1 y = 5 \n" ); document.write( "Find the slope of this line \n" ); document.write( " \n" ); document.write( "1 y = -8 x + 5 \n" ); document.write( "Divide by 1 \n" ); document.write( " y = -8 x + 5 \n" ); document.write( "Compare this equation with y=mx+b, m= slope & b= y intercept \n" ); document.write( "slope m = -8 \n" ); document.write( " \n" ); document.write( "The slope of a line perpendicular to the above line will be the negative reciprocal 1/8 \n" ); document.write( "m1*m2=-1 \n" ); document.write( "The slope of the required line will be 1/8 \n" ); document.write( " \n" ); document.write( "m= 1/8 ,point ( 3 , 4 ) \n" ); document.write( "Find b by plugging the values of m & the point in \n" ); document.write( "y=mx+b \n" ); document.write( "4 = 3/ 8 + b \n" ); document.write( "b= 29/8 \n" ); document.write( "m= 1/8 \n" ); document.write( "The required equation is y = 1/ 8 x +29/ 8 \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |