# Vocabulary Topic 1

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2015-09-10 22:02

## Section

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

absolute value | The distance that a number is from zero on a number line |

additve inverse (opposite) | The opposite or AI of an number a is -a. The sum of opposites is 0 |

algebraic expression | A mathematical phrase that includes one or more variable |

base | A # that is multiplied repeatedly |

coefficient | The numerical factor when a term has a variable |

constant | A term that has no variable factor |

counterexample | An example showing that a statement i fal |

deductive reasoning | A process od reasoning logically from given facts to a conclusion |

Evaluate | To substitute a given number for each variable, then simplify |

exponent | A number that shows repeated multiplication |

index of a root | A way of writing multiplications that have many repeated terms |

integers | Whole numbers and their opposites |

irrational number | A # that cannot be written as a ratio of two numbersin decimal form are nonterminaing and nonrepeateing |

like terms | Terms with exactly the same variable factorsin a variable expression |

modeling | Making somethn that is made to be like another thing |

Multiplicative inverse (reciprocal) | Given a nonzero rational number a/b the MI or reciprocal is b/a. The product is 1 |

natural numbers | The counting numbers |

Perfect squares | Numbers whose square roots are integers |

Power | The base and the exponent of an expression of the form a^n. |

Quantity | Anything that can be measured or counted |

Radical | An expression made up of radical symbol and a radicand |

Radicand | The expression under the radical sign |

Rational numbers | a real number that can be written as a ratio of two integers. Rational numbers in decimal form are terminating or repeating |

Real number | a number that is either rational or irrational |

Simplify | to replace an expression with its simplest name or form. |

Square root | a number b such that a^2=b. The square root of b is the principal square root. The opposite of the square root of b is the negative square root |

Unit rate | a rate with a denominator of 1. |

Variable | a symbol, usually a letter, that represents one or more numbers. |

Whole numbers | the nonnegative numbers |

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