Higher - The gradients of two perpendicular lines will always multiply to make –1. Make sure you are familiar with finding the equation of a line and calculating gradient to understand equations of ...

Learn about graphing linear equations. A linear equation is an equation whose highest exponent on its variable(s) is 1. i.e.

Here, engineering aspirants will get revision notes of Straight Lines including important topics like coordinates of the point dividing a line segment, area of triangle, inclination of line, ...