Basic Matrices

Front

What is a matrix?

Back

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

Front

What are the dimensions of a matrix?

Back

The dimensions of a matrix are given in the form 'rows x columns'. For example, a 3x2 matrix has 3 rows and 2 columns.

Front

How do you identify an element in a matrix?

Back

An element in a matrix is identified by its position, given as (row, column). For example, the element in the second row, third column is denoted as R[2,3].

Front

What is matrix addition?

Back

Matrix addition involves adding corresponding elements of two matrices of the same dimensions.

Tags

CCSS.HSN.VM.C.8

Front

What is the result of adding the matrices: [[1, 2], [3, 4]] and [[5, 6], [7, 8]]?

Back

The result is [[6, 8], [10, 12]].

Tags

CCSS.HSN.VM.C.8

Front

What is matrix subtraction?

Back

Matrix subtraction involves subtracting corresponding elements of two matrices of the same dimensions.

Tags

CCSS.HSN.VM.C.8

Front

What is the result of subtracting the matrices: [[5, 6], [7, 8]] from [[1, 2], [3, 4]]?

Back

The result is [[-4, -4], [-4, -4]].

Tags

CCSS.HSN.VM.C.8

Front

What is matrix multiplication?

Back

Matrix multiplication involves multiplying rows of the first matrix by columns of the second matrix.

Tags

CCSS.HSN.VM.C.8

Front

What is the result of multiplying the matrices: [[1, 2], [3, 4]] and [[5, 6], [7, 8]]?

Back

The result is [[19, 22], [43, 50]].

Tags

CCSS.HSN.VM.C.8

Front

What is a square matrix?

Back

A square matrix is a matrix with the same number of rows and columns.