Matrices Basics

What is a square matrix?

• A matrix with the same number of rows and columns.

• A matrix with more rows than columns.

• A matrix with more columns than rows.

• A matrix that contains only zeroes.

Define a matrix.

• A square array of numbers arranged in rows and columns.

• A rectangular array of numbers arranged in rows and columns.

• A collection of data points in a graph.

• A single number representing a value.

What is matrix multiplication?

• The operation of multiplying two matrices by taking the dot product of rows and columns.

• The process of adding two matrices together element-wise.

• A method for finding the inverse of a matrix.

• The operation of subtracting one matrix from another.

What is matrix addition?

• The operation of adding two matrices by adding their corresponding elements.

• The process of multiplying two matrices together.

• The method of finding the determinant of a matrix.

• The technique of inverting a matrix.

What is the solution type if a system of equations is the same line?

• One Solution

• No Solution

• Infinitely Many Solutions

• Exactly Two Solutions

What is a column matrix?

• A matrix with only one row.

• A matrix with only one column.

• A matrix with multiple rows and columns.

• A matrix that contains only zeros.

What is the transpose of a matrix?

• A new matrix obtained by swapping rows and columns.

• A matrix that is multiplied by its inverse.

• A matrix that has the same dimensions as the original.

• A matrix obtained by adding a scalar to each element.

What is a scalar multiplication of a matrix?

• The operation of multiplying each element of a matrix by a scalar (a constant).

• The process of adding a scalar to each element of a matrix.

• The method of dividing each element of a matrix by a scalar.

• The technique of transposing a matrix and then multiplying by a scalar.

What is the determinant of a 2x2 matrix?

• ad - bc

• a + d

• ab - cd

• ac + bd

What is the result of the product if the columns of the first matrix are different from the rows of the second matrix

• Undefined

• Zero Matrix

• Identity Matrix

• Determinant