MCQ PracticeFor triangle PQR, find equation of altitude PS if co-ordinates of P, Q and R are (1, 2), (2, -1) and (0,5) respectively?Subject: MathematicsTopic: Coordinate GeometryAx - 3y = -7Bx + 3y = -5Cx - 3y = -5Dx + 3y = -7Correct Answer: CPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the