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 how to find equations of parallel lines, work out the gradient of perpendicular lines, and prove that given lines are parallel or perpendicular.

The formula for the perfect parking job was recently worked out by mathematician Simon Blackburn, professor at the University of London.

The formula for the perfect parking job was recently worked out by mathematician Simon Blackburn, professor at the University of London.