Math Chapter Wise The Line And General Equation Of Second Degree And Its Classification English MCQ PGT 2004 Q.The straight line y = mx + c will be normal to the circle (x + a)2 + (y + b)2 = r2, if Aa = bm + c Bc = am - b Cb = am + c Dc = bm - a Show answer Correct answer: c = am - b