Warm-Up 8 - Matrices

Front

What is a matrix?

Back

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

Front

How do you denote the element in the second row and third column of a matrix?

Back

The element in the second row and third column of a matrix is denoted as r_2,3.

Front

What are the dimensions of a matrix?

Back

The dimensions of a matrix are given as the number of rows by the number of columns, expressed as 'rows x columns'.

Front

What is the value of r_2,3 in a matrix if it is given as 6?

Back

The value of r_2,3 is 6.

Front

If a matrix has dimensions 3x1, how many rows and columns does it have?

Back

It has 3 rows and 1 column.

Front

What is the value of D_2,1 if it is given as -4?

Back

The value of D_2,1 is -4.

Front

When stating the dimensions of a matrix, what comes first?

Back

The number of rows comes first.

Front

What are the dimensions of a matrix with 3 rows and 2 columns?

Back

The dimensions are 3 x 2.

Front

What is the difference between a row matrix and a column matrix?

Back

A row matrix has only one row, while a column matrix has only one column.

Front

How do you add two matrices?

Back

You can add two matrices by adding their corresponding elements, provided they have the same dimensions.