Mathematics: Analysis and Approaches · Topic 3: Geometry and trigonometry
AHL3.14 — Vector equation of a line
Mathematics: Analysis and Approaches · SL / HL · syllabus-mapped notes
Forms of the equation of a line
Write a line in vector, parametric and Cartesian form in two or three dimensions.
Angle between two lines
Use the direction vectors and the scalar product to find the angle between two lines.
Kinematics applications
Interpret the line equation as motion, with the parameter as time and direction as velocity.