Linear Systems Flashcards

To learn the key vocabulary for our chapter on Linear Systems

1
Q

System of Equations

A

A set of two or more equations that use the same variables

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2
Q

Linear System

A

A set of two or more linear equations that use the same variables

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3
Q

Solution of a System

A

A value or set of values that for the variables that make the equations in the system true

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4
Q

Inconsistent System

A

A system of equations that has no solutions.

Example: y = x+2 and y = x-2

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5
Q

Consistent System

A

A system that has at least one solution

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6
Q

Independent System

A

A system that has a unique solution

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7
Q

Dependent System

A

A system that does not have a unique solution

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8
Q

Intersecting Lines

A

Have one solution, are consistent and independent

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9
Q

Coinciding Lines

A

Have infinite solutions, are consistent and dependent

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10
Q

Parallel Lines

A

Have no solution and are inconsistent

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11
Q

Equivalent Systems

A

Systems that have the same solutions

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12
Q

Linear Programming

A

A mathematical technique for maximizing or minimizing a linear function of several variables, given a set of constraints

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13
Q

Constraint

A

Restrictions on the variables of the objective function in a linear programming problem

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14
Q

Feasible Region

A

A region that contains all the values that satisfy the constraints on the objective function

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15
Q

Objective Function

A

A model of the quantity that you want to make as large or as small as possible.

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16
Q

Vertex Principle of Linear Programming

A

If there is a maximum or a minimum value of the linear objective function, it occurs at one or more vertices of the feasible region

17
Q

Matrix

A

A rectangular array of numbers written within brackets

18
Q

Matrix Element

A

Every item listed in a matrix is an element of the matrix. They are identified by their position in the matrix

19
Q

Row Operation

A

The three operations that you can do with a matrix. They are row switching, row multiplication, and row addition