WorksheetsMatrix Test Review
Total questions: 30
Worksheet time: 3hrs 32mins
What is the name of each entry of a matrix?
Row
Element
Dimension
Rectangle
How many columns are in a 5 x 4 matrix?
5
4
20
9
Perform the indicated operation
not possible
How would a scalar multiplication be carried out for a matrix?
Add the Scalar to every element in the matrix
Dot product the rows of one matrix with the columns of the other matrix
Multiply every element with the scalar to create a new matrix
subtract the elements in the first matrix from the elements of the second matrix
You can add a 2X3 matrix by which matrix?
2X2
2X12
3X12
2X3
Find A+B
8 10
8 1
12 25
7 1
10 30
0 1
can't add two together because the rows dont match columns
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
What do w, x, y and z equal in this matrix subtraction?
w = 13, x = 4, y = 7, z = 23
w = 13, x = -4, y = 11, z = 23
w = 13, x = 4, y = 11, z = 23
w = 13, x = 4, y = 11, z = 17
Perform the matrix multiplication, if possible.
Cannot be multiplied, dimensions not compatible.
Perform the matrix multiplication, if possible.
Cannot be multiplied, dimensions not compatible.
Perform the matrix multiplication, if possible.
Cannot be multiplied, dimensions not compatible.
Perform the matrix multiplication, if possible.
Cannot be multiplied, dimensions not compatible.
Perform the matrix multiplication, if possible.
Cannot be multiplied, dimensions not compatible.
Find the determinant of the matrix:
4
16
-16
-4
Find the inverse of the matrix below:
Find the determinant of the matrix:
3
9
-3
-9
Find the inverse of the matrix:
Find the determinant of the given matrix?
5
-5
0
-75
(3/25) (13/25)
(3/5) (13/5)
(2/25) (9/25)
(3/150) (13/150)
Which of the following are NOT inverse matrices of each other?
What is A-1?
*det= ad-bc
⌊2 3⌋
⌊6 3⌋
Choose the correct matrix form for
5k - 6j = 10
-7k + j = 8
Write these following into Matrix Form
p + q = 7
p - 3q = - 4
Find value of r and s
r = 1/3 and s = 1/4
r = 1/2 and s = 1/3
r = 1/3 and s = 1/2
r = 1/2 and s = 1/3
Solve the following system of equations.
-5x + 5y = -10
-7x + 4y = 13
(-7, -5)
(-7, -9)
(7, -9)
(-7, 5)
