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# Math Vocab Chap 1

### math vocabulary words to know

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

a branch of mathmatics dealing with symbols | algebra |

an expression that contains sums and/or products of variables and numbers | algebraic expression |

another name for the coordinate system | coordinate plane |

formed by the intersection of two number lines that meet at right angles at their zero points, also called a coordinate plane | coordinate system |

an example that shows a conjecture is not true | counterexample |

the process of using facts, properties, or rules to justify reasoning or reach valid conclusions | deductive reasoning |

choosing a variable and a quantity for the variable to represent in an equation | defining a variable |

the set of all x-coordinates from each pair | domain |

a mathematical sentence that contains an equals sign | equation |

find the numerical value of an expression | evaluate |

a special relation in which each element of the domain is paired with exactly one element in the range | function |

the operation performed on the input of a function | function rule |

a table organizing the input, rule, and output of a function | function table |

a dot at the point that corresponds to an ordered pair | graph |

a combination of numbers adn operations such as additon, subtraction, multiplication, and division | numerical expression |

the rules to follow when mmore than one operation is used in an expression | order of operations |

a pair of numbers used to loate any point on a coordinate plane | ordered pair |

the point at which the number lines intersect in a coordinate system | origin |

statements that are true for any numbers | properties |

the set of all y-coordinates from each ordered pair | range |

a set of ordered pairs | relation |

the relationship between a set of data with two variables, graphed as ordered pairs on a coordinate plane | scatter plot |

to write an expression in a simpler form | simplify |

a placeholder for any value | variable |

the horizontal number line which helps to form the coordinate system | x-axis |

the first number of an ordered pair | x-coordinate |

the vertical number line which helps to form the coordinate system | y-axis |

the second number in an ordered pair | y-coordinate |

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i<3mattie&gracie