IGCSE Mathematics Extended E3.7.1 Find the gradient and equation of a straight line perpendicular to a Question Bank

• Find the gradient and equation of a straight line perpendicular to a given line. Examples include: • find the gradient of a line perpendicular to 2y = 3x + 1 • find the equation of the perpendicular bisector of the line joining the points (–3, 8) and (9, –2). 4 Geometry