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# pre algebra--wilson

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

Numerical expression | contains numbers and operations. ( multiplication, subtraction, division, addition) |

Evaluate | find the value of.... |

orders of operations | Rules to follow when evaluating an expression with more than 1 operation |

Algebra | Branch of mathematics that uses symbols (variables) |

Variable | A letter or symbol used to represent an unknown value |

algebraic expression | Contains numbers, operations and variables |

defining a variable | Choose a variable and a quantity for the variable to represent |

properties | Statements that are true for any numbers |

simplify | Perform all possible operations |

coordinate system, coordinate plane | Intersection of 2 number lines at right angles meeting at their zero points |

y - axis | Vertical number line on coordinate system |

x- axis | Horizontal number line on coordinate system |

origin | point where number signs intersect |

ordered pair | Numbers used to locate points on a coordinate plane |

x coordinate | first number of ordered pair |

y coordinate | second number of ordered pair. |

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

relation | set of ordered pairs |

domain | set of x coordinates in a realtion |

range | set of y coordinates in a relation |

function | Special relation in which each x-coordinate (domain) is paired with exactly one y-coordinate (range) |

function rule | Operation performed on domain (x) to get the range (y) |

function table | A table that lists the x coordinates, the function rule and the y coordinates |

equation | Math sentence stating 2 quantities are equal |

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