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# mhphall prealgebra

### Chapter 1 Vocabulary

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

What is a variable? | A variable is a letter that stands for a number. |

What is a variable expression? | A variable expression is a mathematical phrase that uses variables, numerals, and operation symbols. |

What is the Order of Operations? | 1. Work inside grouping symbols. 2. Simplify any terms with exponents. 3. Multiply and divide in order from left to right. 4. Add and Subtract in order from left to right. |

What is to evaluate a variable expression? | To evaluate a variable expression, you first replace each variable with a number, then use the order of operations to simplify. |

What are opposites? | Numbers that are the same distance from zero on a number line but opposite directions. |

What are integers? | Integers are whole numbers and their opposites. |

What is absolute value? | Absolute value is a number's distance from zero on the number line. |

What is inductive reasoning? | Inductive reasoning is making conclusions based on patterns you observe. |

What is a conjecture? | A conjecture is a conclusion reached by inductive reasoning. |

What is a coordinate plane? | A coordinate plane is formed by the intersection of two number lines. |

What is the x-axis? | The x-axis is the horizontal number line on a coordinate plane. |

What is the y-axis? | The y-axis is the vertical number line on a coordinate plane. |

What is an ordered pair? | The ordered pair gives the coordinates and the location of a point. |

What is the origin? | The origin is where the axes intersect (0). |

Created by:
magcota