document.write( "Question 167200: problem came from a worksheet. the equation of the line perpendicular to 3x-4y=9 and passing through (-2, -1). write the equation in standard form, with all integer coefficients. \n" ); document.write( "
Algebra.Com's Answer #123127 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! Perpendicular to 3x-4y=9 and passing through (-2, -1) \n" ); document.write( "4y=3x-9 \n" ); document.write( "y=3x/4-9/4 (red line) \n" ); document.write( "This line has a slope(m)=3/4. \n" ); document.write( "Any perpendicular line will have a slope(m)=-4/3. \n" ); document.write( "Y=mX+b \n" ); document.write( "-1=-4/3*-2+b \n" ); document.write( "-1=8/3+b \n" ); document.write( "b=-1-8/3 \n" ); document.write( "b=(-3-8)/3 \n" ); document.write( "b=-11/3 \n" ); document.write( "Thus the desired line equartion is: \n" ); document.write( "y=-4x/3-11/3 (green line) \n" ); document.write( " |