WorksheetsQUIZ 2 NUM10212 (UNIT 3 MATRICES)
Total questions: 10
Worksheet time: 50mins
Name
Class
Date
1.
The number of elements in this matrix is
a)
2
b)
3
c)
6
d)
7
2.
The order of the matrix is
a)
2 x 3
b)
3 x 2
3.
Subtract
a)
3 -8
0 -1
0 -1
b)
3 -4
8 -13
8 -13
c)
-3 8
0 1
0 1
d)
3 -8
-8 1
-8 1
4.
Calculate the Determinant
a)
det = -45
b)
det = 109
c)
det = 45
d)
det = -109
5.
b23 the answer is ____.
a)
-2
b)
3
c)
4
d)
-5
6.
The determinant is ____
a)
2×6+5×3
b)
2×6−5×3
c)
5×3−2×6
d)
5×3+2×6
7.
When you multiply a matrix by the inverse matrix, you obtain the
a)
inverse matrix.
b)
transpose matrix.
c)
Identity matrix
d)
original matrix.
8.
Solve the system using matrices
x + 7y = - 21
9x + 7y = 35
x + 7y = - 21
9x + 7y = 35
a)
(7, -4)
b)
(-4, 7)
c)
(7, 4)
d)
(-4, -7)
9.
Find the product of the two matrices.
a)
undefined
b)
-3 16
17 12
8 -10
17 12
8 -10
c)
3 12
-15 -8
-1 -3
-15 -8
-1 -3
10.
Which of the following shows the system of equations using a matrix equation?
a)
b)
c)
d)
100 %
