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 ...

Parallel lines are defined as lines that lie in the same plane and never intersect, no matter how far they are extended. A key characteristic of parallel lines is that they have the same slope.

Use this comprehensive equation of a line worksheet as a revision resource. Alternatively, select the parts appropriate to what you are teaching. While you’ll typically introduce the material in this ...