WorksheetsMatrices Pre Test Exercise
Total questions: 12
Worksheet time: 3hrs 35mins
Name
Class
Date
1.
Find the inverse of the matrix.
a)
b)
c)
d)
No Inverse Exists
2.
Solve for the determinant of the following matrix:
⌈12 −3⌉
⌊−6 15⌋
*detA= ad-bc
⌈12 −3⌉
⌊−6 15⌋
*detA= ad-bc
a)
198
b)
162
c)
-333
d)
-9
3.
a)
undefined
b)
c)
d)
4.
Multiply
a)
undefined
b)
c)
d)
5.
multiply
a)
undefined
b)
c)
d)
6.
Multipy.
a)
b)
c)
d)
undefined
7.
Write the matrix equation in matrix form AX=B.
-5x + 10 = -5y
-13 + 4y = 7x
a)
b)
c)
8.
Solve the system using matrices
x + 2y = 2
5x - 6y = - 54
a)
(-6, 4)
b)
(-8, 4)
c)
(8, 4)
d)
(6, 4)
9.
Solve the system using matrices if determinant is 11
3x - 8x = 32
x + y = 7
a)
(-8, 1)
b)
(8, -1)
c)
(-1,8)
d)
(1, -8)
10.
What do m, n, p and q equal in this scalar matrix multiplication?
a)
m=8, n=9, p=-4, q=4
b)
m=15, n = -45, p=20, q=-5
c)
m=20, n=-5, p=15, q=-45
d)
m=-5, n=20, p=-45, q=15
11.
a)
b)
c)
12.
a)
b)
c)
100 %
