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 ...

A price channel, in Technical Analysis Trading, is a simple but powerful graphical pattern. It is created when a security’s price remains contained between two parallel trendlines: an upper line ...

Horizontal lines run left to right, parallel to the horizon, with slope 0 and equation y = k. Vertical lines run top to bottom, perpendicular to the horizon, with undefined slope and equation x = k.

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 ...