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# PHMS7_M7CH1

### 7th Grade Chapter 1 Vocab

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

algebra | the brainch of mathematics that involves expressions with variables |

algebraic expression | a combination of variables, numbers, and at least one operation |

arithmetic sequencesequence | a sequence in which each term is found by adding the same number to the previous term |

base | in a power, the number used as a factor |

coefficient | the numerical factor of a term contains a variable |

defining the variable | choosing a variable to represent an unknown value in a problem and using it to write an expression or equation to solve the problem |

domain | the set of input values for a function |

equation | a mathematical sentence that contains an equals sign, = |

equivalent expressions | expressions that have the same value |

evaluate | to find the value of an expression |

exponent | in a power, the nember that tells how many times the base is used as a factor |

factors | two or more numbers that are multiplied together to form a product |

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 rule | the operation performed on the input of a function |

numerical expression | a combination of numbers and operations |

order of operations | the rules to follow when more than one operation is used in a numerical expression ** PEMDAS **** MD left to right ****AS left to right |

perfect square | nnumbers with square roots that are whole numbers |

powers | numbers expressed using exponents |

radical sign | the symbol used to indicate a nonnegative square root |

range | the difference between the greatest and least numbers in a data set |

sequence | a list of numbers in a certain order |

solution | a valuefor a the variable that makes an equation true |

square | a product of a number and itself |

square root | one of the two equal factors of a number |

term | each number in a sequence |

variable | a placeholder, usually a letter, used to represent an unspecified value in mathematical expressions or sentences |

Created by:
szimmerman