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# Finals-Mathematics

### Study for math finals

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

Function Notation | f(x)=mx+b |

Slope | Slope of a straight line. |

Exponential Decay | The rate of decay in a equation |

Exponential Growth | The rate of growth in a equation |

Exponential Function | A function of the form y = a·bx where a > 0 and either 0 < b < 1 or b > 1 |

Independent variable | variable that can be alone |

dependent variable | variable that needs another variable to be. |

inequality | A mathematical sentence built from expressions using one or more of the symbols <, >, ≤, or ≥. |

identify function | f(x) = x. More generally, an identity function is one which does not change the domain values at all. |

linear equation | An equation that can be written in the form "linear polynomial = linear polynomial" or "linear polynomial = constant". The following are examples of linear equations: 2x – 3 = 5, 4a + 9 = 8 – 9a, and 2x + 5y = 1. |

All Real Number | All numbers on the number line. This includes (but is not limited to) positives and negatives, integers and rational numbers, square roots, cube roots , π (pi), etc. Real numbers are indicated by either or . |

Variable | A quantity that can change or that may take on different values. Variable also refers to a letter or symbol representing such a quantity. |

Absolute value | the magnitude of a real number without regard to its sign. |

Inequality | the relation between two expressions that are not equal |

≠ | not equal to |

> | greater than |

< | less than |

domain | All the values that go into a function. |

Range | The set of all output values of a function. |

Line of best fit | A line on a graph showing the general direction that a group of points seem to be heading. |