
Exploring Scalar Multiplication of Matrices

Interactive Video
•
Mathematics
•
8th - 12th Grade
•
Hard
Standards-aligned

Olivia Brooks
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What must be true about the dimensions of matrices for them to be added or subtracted?
They must be square matrices.
They must have the same dimensions.
They must have the same number of columns.
They must have the same number of rows.
Tags
CCSS.HSN.VM.C.8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a scalar in the context of matrices?
A single number used in matrix operations.
A matrix with only one row.
A matrix with only one column.
A matrix with equal rows and columns.
Tags
CCSS.HSN.VM.C.11
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you multiply a matrix by a scalar?
The matrix is transposed.
The matrix is inverted.
Each element of the matrix is multiplied by the scalar.
The matrix dimensions change.
Tags
CCSS.HSN.VM.C.7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you multiply a 3x1 matrix by 5, what will be the dimensions of the resulting matrix?
5x1
3x5
1x3
3x1
Tags
CCSS.HSN.VM.C.7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of multiplying the matrix [1, 2, 3] by the scalar 5?
[1, 2, 3]
[5, 10, 15]
[5, 2, 3]
[1, 10, 3]
Tags
CCSS.HSN.VM.C.7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of multiplying the matrix [2, 4; 0, 7; -1, 2] by the scalar 4?
[8, 16; 0, 28; -4, 8]
[2, 4; 0, 7; -1, 2]
[8, 4; 0, 7; -1, 8]
[2, 16; 0, 28; -4, 2]
Tags
CCSS.HSN.VM.C.7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When combining scalar multiplication and matrix addition, what must be true about the matrices?
They must be square matrices.
They must have the same dimensions.
They must be multiplied by the same scalar.
They must have the same number of elements.
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