VECTOR ADDITION/ SUBTRACTION

 Use the linear form to add or subtract two vectors by combining like terms. 

Khan Academy Practice:

• Adding Vectors

• Subtracting Vectors

• Adding and Subtracting Vectors Algebraically

• Adding and Subtracting Vectors Graphically

UNIT VECTOR

 For any nonzero vector v, divide v by its magnitude to find a unit vector u in the same direction.

SCALAR MULTIPLICATION

 Vectors can be multiplied by a scalar, which is a value with only magnitude and no direction. The product of a vector v and a scalar k is a vector that is |k| times as long as v. The direction of kv is the same direction as v if k is positive and the opposite direction of v if k is negative. 

Khan Academy Practice:

• Scalar Multiplication (Component Form)

• Scalar Multiplication (Magnitude and Direction)

• Scalar Multiplication