Introduction to Matrices
Matrix Operations
Technology!
Determinants & Inverses
System of Equations
100
What are the dimensions? 
3 X 2
100
True or False:
In order to add matrices, the dimensions must be the same. If False, what is the rule?
TRUE
100
What button do you press on your calculator in order to get to the matrix functions?
2nd ----- x-1
100
Calculate the determinant. 
det|A| = 62
100
Which answer choice shows a matrix equation?
a. ax=b
b. ax + by = c
c. AX=B
C. AX=B
200
What are the dimensions?
2 X 2
200
True or False:
In order to multiply matrices, the dimensions must be the same. If False, state the rule.
FALSE.
m X n * n X p
200
det|A| = -141
200
How do you solve a system of equations using matrices?
300
What are the dimensions? 
1 X 4
300
300
Use your calculator to add the following.
300
What is the inverse of the following matrix, if it exists? 
300
400
What is a13? 
0
400
400
Calculate the inverse of the following matrix, if it exists.
No inverse
400
500
What is the address for 6?
a24
500
500
Use your calculator to find the determinant of the following.
500
Calculate the inverse of the following matrix, if it exists. 
500
600
Create the following matrix.
a11= 10
a12=6
a22=5
a21=-9
10 6
-9 5
600
600
Use your calculator to calculate the inverse of the following.
600
Are the following matrices inverses of each other? Explain? 
600
