Transformations and vectors

Reflection and Rotation A reflection is described fully by giving the equation of the mirror line, e.g. x=3 , y=-2 , y=x or y=-x A rotation is described fully…

Vector Notation A vector has both magnitude (size) and direction, unlike a scalar, which only has size A vector can be written as a column vector x. y , where…

Finding the Magnitude of a Vector Extended Only The magnitude of a vector is its length. It is also called the modulus of the vector, and is always a positive…

Position Vectors Extended Only A position vector describes where a point is relative to a fixed origin O The position vector of a point A is written OA=a ; its…