document.write( "Question 461919: Give the equation of the line that is perpendicular to the line y = -3x + 7 and passes through point (0, -6). \n" ); document.write( "
Algebra.Com's Answer #316720 by robertb(5830)![]() ![]() You can put this solution on YOUR website! The equation is equivalent to y + 3x = 7.\r \n" ); document.write( "\n" ); document.write( "Any line perpendicular to this must then have the form 3y - x = c, where c is an undetermined constant. To find the value of c, use the coordinates of the given point into this line:\r \n" ); document.write( "\n" ); document.write( "3*(-6) - 0 = c ==> c = -18.\r \n" ); document.write( "\n" ); document.write( "Hence the equation of the line is 3y - x = -18. \n" ); document.write( " |