
Matrix Properties, Systems of Eq, and Encryption Practice
Authored by Lanae Schulz
Mathematics
11th Grade
CCSS covered
Used 6+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Encryption matrices must be ___.
square. (Same number of rows and columns.)
invertible. (Have an inverse.)
the same size as the message matrix M.
positive. (Contain no negatives.)
Tags
CCSS.HSA.REI.C.9
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To encrypt a message matrix M using an encryption matrix E, you multiply _.
Tags
CCSS.HSN.VM.C.8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given matrices E and M shown, encrypt the message.
The matrix cannot be encrypted.
Tags
CCSS.HSN.VM.C.11
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To DECRYPT a message matrix A using an encryption matrix E, you multiply _.
Tags
CCSS.HSA.REI.C.9
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Given matrices E and A shown, decrypt the message. (Use your alphabet chart in Lesson 13)
(a)
Tags
CCSS.3.OA.B.5
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Given matrices E and A shown, decrypt the message. (Use your alphabet chart in Lesson 13)
(a)
Tags
CCSS.HSN.VM.C.11
7.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Given matrices E and A shown, decrypt the message. (Use your alphabet chart in Lesson 13)
(a)
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