Matrix Operations Quiz

How do you define the shape of a matrix?

• By the sum of all elements

• By the number of rows and columns

• By the number of elements

• By the diagonal elements

What happens when you transpose a 2x3 matrix?

• It becomes a 3x2 matrix

• It becomes a 2x2 matrix

• It remains a 2x3 matrix

• It becomes a 3x3 matrix

When adding two matrices, what must be true about their shapes?

• They must have the same number of rows

• They must be square matrices

• They must have the same number of columns

• They must have the same shape

Tags

CCSS.HSN.VM.C.8

What is the key rule for matrix multiplication?

• The number of rows in the first matrix must match the number of columns in the second matrix

• The number of columns in the first matrix must match the number of rows in the second matrix

• Both matrices must be square

• Both matrices must have the same shape

Tags

CCSS.HSN.VM.C.8

CCSS.HSN.VM.C.9

What is the shape of the resulting matrix when multiplying a 2x3 matrix with a 3x2 matrix?

• 3x3

• 3x2

• 2x3

• 2x2

Tags

CCSS.HSN.VM.C.8

What is the result of multiplying a matrix by its inverse?

• A diagonal matrix

• A zero matrix

• The identity matrix

• A matrix with all elements equal to one

Tags

CCSS.HSN.VM.C.9

CCSS.HSA.REI.C.9

What is the identity matrix?

• A matrix with all elements equal to zero

• A matrix with zeros on the diagonal and ones elsewhere

• A matrix with all elements equal to one

• A matrix with ones on the diagonal and zeros elsewhere

Tags

CCSS.HSN.VM.C.9

Which tool is recommended for inverting larger matrices?

• Spreadsheet software

• Graphing calculator

• Python or Matlab

• Hand calculation

Tags

CCSS.HSA.REI.C.9

Tags

CCSS.HSN.VM.C.8

CCSS.HSN.VM.C.9

Tags

CCSS.HSN.VM.C.8

CCSS.HSN.VM.C.7