document.write( "Question 387260: Write an equation of the line that passes through the point (18, −7) and is perpendicular to the line y = −9x + 8. \n" ); document.write( "
Algebra.Com's Answer #273736 by mananth(16946)![]() ![]() You can put this solution on YOUR website! Write an equation of the line that passes through the point (18, -7) and is perpendicular to the line y = -9x + 8. \n" ); document.write( "... \n" ); document.write( "(18, -7) and is perpendicular to the line y = -9x + 8. \n" ); document.write( "... \n" ); document.write( "y = -9x + 8. \n" ); document.write( "... \n" ); document.write( "compare with y= mx +b \n" ); document.write( ".. \n" ); document.write( "m= -9 the slope \n" ); document.write( "The perpendicular line will have slope 1/9. \n" ); document.write( ".... \n" ); document.write( "(18, -7) and m= 1/9 \n" ); document.write( "Find b by plugging (18, -7) m= 1/9 , \n" ); document.write( " y = mx + b \n" ); document.write( "-7=18*1/9 +b \n" ); document.write( "-7=2+b \n" ); document.write( "b=-9 \n" ); document.write( "... \n" ); document.write( "The equation will be \n" ); document.write( "y = (x/9)-9 \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |