Before you start, it may be helpful to read the guides on coordinates and graphs from Module 2 (M2) and Module 3 (M3). When two lines are perpendicular, the product of their gradients is 1. Lines A ...
Horizontal lines run left to right, parallel to the horizon, with slope 0 and equation y = k. Vertical lines run top to bottom, perpendicular to the horizon, with undefined slope and equation x = k.
When two lines are perpendicular, the product of their gradients is -1. The two lines are perpendicular. Line A \(m = 2\) Line B \(m = - \frac{1}{2}\) A line L₁ has the equation \(3y = 2x - 5\).What ...