Vector Addition and Scalar Multiplication (8.3.3)

Question 1

• A number that is multiplied into a vector is called a scalar. Scalar multiplication is the process of multiplying a vector by a scalar.

Answer 1

• A number that is multiplied into a vector is called a scalar. Scalar multiplication is the process of multiplying a vector by a scalar.

Question 2

• Scalar multiplication can change the magnitude of a vector. To perform scalar multiplication, multiply each of the vector’s components by the scalar.

Answer 2

• Scalar multiplication can change the magnitude of a vector. To perform scalar multiplication, multiply each of the vector’s components by the scalar.

Question 3

• The process of adding two vectors together is called vector addition. To perform vector addition for two vectors, just add the x-components together and add the y-components together.

Answer 3

• The process of adding two vectors together is called vector addition. To perform vector addition for two vectors, just add the x-components together and add the y-components together.