Whether you’re an artist, an architect, or carpenter, a T-square is an essential tool for your work arsenal. Like an upgraded straightedge, this drawing instrument helps you draw accurate, properly ...

Lines which are parallel have the same gradient. For example, \(\text{y = 2x + 1}\) and \(\text{y = 2x - 2}\) will be parallel because they both have a gradient of 2. We want to determine if the lines ...

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 ...