Vectors - Equation of a Line HL
You should already be familiar with the equation of a straight line in Cartesian form in 2 dimensions, y = ax + b. When we move into 3 dimensions, the Cartesian form becomes a little more awkward. Don't worry, vectors are here to help us out! Once you understand the vector equation of a line, it is really useful for solving all sorts of problems with angles and intersections. Key Concepts On this page, you should...