👉 Learn how to write the equation of a line that is perpendicular to a given line. The equation of a line is such that its ...

In this video series I show you how to determine a line that is parallel or perpendicular to another line through a point. When dealing with parallel and perpendicular lines it is important to know ...

If lines are perpendicular to each other then \({m_1} \times {m_2} = - 1\) conversely if \({m_1} \times {m_2} = - 1\) then the lines are perpendicular to each other.

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 ...