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# 7 Math Ch. 4

### Algebra: Linear Equations and Functions

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

domain | the set of input values for a function |

function | a relation in which each element of the input is paired with exactly one element of the output according to a specified rule |

function table | a table used to organize the input numbers, output numbers, and the function rule |

inequality | a mathematic sentence that contains the symbols greater than, less than, less than or equal to, or greater than or equal to |

inverse operations | operations that "undo" each other |

linear equation | an equation for which the graph is a straight line |

range | the set of output values for a function |

slope | a number that tells how steep a line is / found by looking at the change in y over the change in x |

two-step equation | an equation having two different operations |

work backward strategy | begin by taking the last value in the problem and perform opposite operations with each subsequent value until you arrive at the initial value |