Intro Matrices

What are the dimensions of this matrix?

• 2 x 3

• 3 x 2

• 6 x 1

• 1 x 6

How many columns are in a 5 x 4 matrix?

• 5

• 4

• 20

• 9

What do m, n, p and q equal in this scalar matrix multiplication?

• m=8, n=9, p=-4, q=4 

• m=15, n = -45, p=20, q=-5

• m=20, n=-5, p=15, q=-45

• m=-5, n=20, p=-45, q=15

The assignment problem is always a ______________matrix

• unit

• square

• rectangle

• triangle

Determine the type of the matrix

• Upper Triangular Matrix

• Identity Matrix

• Diagonal Matrix

• Lower Triangular Matrix

• Row Matrix

Determine the type of the matrix

• Upper Triangular Matrix

• Identity Matrix

• Diagonal Matrix

• Lower Triangular Matrix

• Row Matrix

What is a matrix with the same number of rows as columns?

• square

• monkey

• full set

• equivalent

Identify

• singular matrix

• partial fraction

• coeffecient matrix

• inverse matrix

Find B-A

• -3     1
  7     -1

• 1     0
  1     -4

• 4       0
  -6     1

• not possible because rows do not match columns

What is matrix addition?

• Multiplying the corresponding elements of two matrices together.

• Subtracting the corresponding elements of two matrices.

• Dividing the corresponding elements of two matrices.

• Adding the corresponding elements of two matrices together.