Matrix Operations Review

Front

What is a matrix?

Back

A matrix is a rectangular array of numbers arranged in rows and columns.

Front

What does it mean to add two matrices?

Back

To add two matrices, they must have the same dimensions, and you add corresponding elements.

Tags

CCSS.HSN.VM.C.8

Front

What is the result of multiplying a matrix by a scalar?

Back

Multiplying a matrix by a scalar involves multiplying each element of the matrix by that scalar.

Tags

CCSS.HSN.VM.C.7

Front

What are the conditions for matrix multiplication?

Back

The number of columns in the first matrix must equal the number of rows in the second matrix.

Tags

CCSS.HSN.VM.C.8

Front

What is the identity matrix?

Back

The identity matrix is a square matrix with ones on the diagonal and zeros elsewhere.

Tags

CCSS.HSN.VM.C.10

Front

How do you find the transpose of a matrix?

Back

The transpose of a matrix is obtained by swapping its rows and columns.

Front

What is the determinant of a 2x2 matrix?

Back

For a matrix [[a, b], [c, d]], the determinant is ad - bc.

Front

What is a zero matrix?

Back

A zero matrix is a matrix in which all elements are zero.

Front

What does it mean for two matrices to be equal?

Back

Two matrices are equal if they have the same dimensions and all corresponding elements are equal.

Front

How do you perform matrix subtraction?

Back

Matrix subtraction is done by subtracting corresponding elements of two matrices of the same dimensions.

Tags

CCSS.HSN.VM.C.8