Lessons for Topic 4.8
Component form of a vectorWriting a vector as the horizontal and vertical change from its tail to its head.Lesson
Unit vectors and i, j notationExpressing any plane vector as a multiple of the horizontal unit vector plus a multiple of the vertical one.Lesson
Magnitude and direction of a vectorFinding a vector's length from its components with the distance formula.Lesson
Scaling a vectorMultiplying by a number stretches or shrinks a vector, and a negative number also reverses it.Lesson
Adding and subtracting vectorsPlacing the second arrow's tail at the first arrow's head, with the sum running from first tail to last head.Lesson