Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# Chapter 1

### Variables, Expressions, and Integers

Term | Definition |
---|---|

Numerical Expression | Consists of numbers and operations |

Variable | A letter used to represent one or more numbers |

Variable Expression | Consists of numbers, variables, and operations |

Evaluate | A variable expression, substitute a number for each variable and evaluate the resulting numerical expression |

Verbal Model | Describes a problem using words as labels and using math symbols to relate the words |

Power | Is the result of a repeated multiplication of the same factor |

Base | The base is the big number |

Exponent | The exponent is the small number in the top corner of the base |

Order of Operations | To evaluate expressions involving more than one operation, mathematicians have agreed on a set of rules |

Integers | Are the numbers...,-3, -2, -1, 0, 1, 2, 3,...(The dots indicate that the numbers continue without end in both the positive and negative directions) |

Negative Integers | Are integers that are less than 0 |

Positive Integers | Are integers that are greater than 0 |

Absolute Value | A number is its distance from 0 on the number line |

Opposite | They have the same absolute values but different signs |

Additive Inverse | The opposite of a number |

Mean | The sum of the values divided by the numbers of values |

Median | The middle value when the values are written in numerical order |

Mode | The value that occurs most often |

Range | The difference of the greatest value and the least value |

Coordinate Plane | Formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y-axis. |

Order Pair | Each point in a coordinate plane is represented by an ordered pair |

Scatter Plot | Uses a coordinate plane to display paired data |

Created by:
wainscottr01