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# chapter5

Question | Answer |
---|---|

Inequality | Contains one of the symbols <,>,_<,_> or not equal to. EX)J<5 |

Compound sentence | A sentence in which two clauses are connected by the word and or with the word or. EX)"x is between 3 and 4 means 3 |

Union | The solution set for a compound sentence using or is the union of the solution sets to the individual sentence. Symbol is U. EX)The union of sets A and B is written as A U B. |

Properties of inequality | For all real numbers a,b, and c: If a 0, then ac bc (inequality) |

Solution set for a system | Is the intersection of the solution sets for the individual sentences. When system has more than 2 equations each with 2 variables, the solution can be found by a table or graph. |

Linear combination method | Involves adding multiples of the given equations. EX) Ax + By linear combination of x and y. |

Matrix form of a system | x+3y=22 2x-y=2 the matrix would look like this:[1 3] [2 -1] |

Coefficient matrix | The matrix [1 3] contains the coefficients matrix. [2 -1] |

Half-planes | When a line is drawn in a plane, the line seprates the plane into 2 distinct regions. |

Boundary | The line itsself is the boundary of the two regions. |

Feasible set or feasible region | The set of solutions to a system of a linear inequalities for that system. Intersection of the boundaries are also called VERTICES. |

Created by:
kaleighbrown