Chapter 4 Vocabulary Flashcards

1
Q

Row Matrix

A

A matrix that only has one row

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2
Q

Column Matrix

A

A matrix that only has one column

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3
Q

Zero Matrix

A

Every element in a matrix is zero

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4
Q

Equal Matrices

A

Two matrices that have the same dimensions and each element of one matrix is equal to the corresponding element of the other matrix

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5
Q

Scalar

A

A constant

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6
Q

Scalar Multiplication

A

Multiplying any matrix by a scalar

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7
Q

Vertex Matrix

A

A polygon represented by placing all of the column matrices of the coordinates of the vertices into on matrix

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8
Q

Transformation

A

A function that maps points of a primate onto its image

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9
Q

Translation

A

Occurs when a figure is moved from one location to another without changing its size, shape, or orientation

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10
Q

Reflection

A

Maps every point of a figure to an image across a line of symmetry using a reflection matrix

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11
Q

Rotation

A

Occurs when a figure is moved around a centre point, usually the origin

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12
Q

Determinant

A

The number associated with every square matrix

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13
Q

Second-Order Determinant

A

The determinant of a 2 x 2 matrix

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14
Q

Third-Order Determinant

A

A determinant of a 3 x 3 matrix

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15
Q

Expansion by Minors

A

A method of evaluating third-order determinants

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16
Q

Minor of an Element

A

The determinant formed when the row and the column containing that element are deleted

17
Q

Cramer’s Rule

A

A method that uses determinants to solve systems of equations

18
Q

Identity Matrix

A

A square matrix that, when multiplied by another matrix, equals the same matrix

19
Q

Inverses

A

Two n x n matrices whose products are the identity matrix

20
Q

Matrix Equation

A

A matrix form used to represent a system of equations

21
Q

Augmented Matrix

A

Contains the coefficient matrix with an extra column containing the constant terms

22
Q

Element

A

Each value in a matrix

23
Q

Dilation

A

When a figure is enlarged or reduced

24
Q

Matrix

A

A rectangular array of variables or constants in horizontal rows and vertical columns