document.write( "Question 114572: equation of the line through points (6,-2) and perpendicular to the line 2x-3y=-7 \n" ); document.write( "
Algebra.Com's Answer #83342 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! FIRST YOU NEED TO FIND THE SLOPE OF THE GIVEN LINE. \n" ); document.write( "Y=mX+b WHERE (m)=SLOPE. \n" ); document.write( "2X-3Y=-7 \n" ); document.write( "-3Y=-2X-7 \n" ); document.write( "Y=-2X/-3-7/-3 \n" ); document.write( "Y=2X/3+7/3 THUS THIS SLOPE=2/3. \n" ); document.write( "A PERPENDICULAR LINE WOULD HAVE A SLOPE = TO THE NEGATIVE RECIPRICAL OF THIS SLOPE. \n" ); document.write( "THUS THE REQUIRED SLOPE=-3/2 FOR THE PERPENDICULAR LINE. \n" ); document.write( "USING THE LINE FORMULA Y=mX+b & SUBSTITUTING THE POINT (6,-2) & THE SLOPE=-3/2 YOU NEED TO SOLVE FOR b THE Y INTERCEPT. \n" ); document.write( "-2=-3/2*6+b \n" ); document.write( "-2=-18/2+b \n" ); document.write( "b=-2+9 \n" ); document.write( "b=7 \n" ); document.write( "SO THE LINE EQUATION IS: \n" ); document.write( "Y=-3X/2+7 \n" ); document.write( " |