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# Unit 4 Math vocab

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

factor | Factors are numbers you can multiply together to get another number: Example: 2 and 3 are Factors of 6, because 2 × 3 = 6. |

variable | A symbol for a number we don't know yet. |

constant | In Algebra, a Constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number. Example: in "x + 5 = 9", 5 and 9 are |

base | The number that is going to be raised to a power. Example: in 82, 8 is the base |

exponent | The Exponent of a number says how many times to use that number in a multiplication. It is written as a small number to the right and above the base number. In this example: 8 2 = 8 × |

perfect square | The number that is going to be raised to a power. Example: in 82, 8 is the base |

PEMDAS | |

algebraic expression | can contain at least one variable and at least one operation...For example, n+2 represents the sum of an unknown number and two. |

order of Operations | Order of operations tells us what order we are supposed to do things in a math problem. For example, what's the answer to this? 4 + 10 x 2 Do we do the 4 + 10 first? Or the 10 x 2 first? Here is the official order of operations: (1) Parenthesis |

Numerical Expressions | An expression that has a number in it |

coeffecient | A Coefficient is a number used to multiply a variable (4x means 4 times x, so 4 is a coefficient) Sometimes a letter stands in for the number: Example: ax2 + bx + c x is a variable a and b are coefficients c is a constant |

term | A Term is either a single number or a variable, or numbers and variables multiplied together. |

expression | An Expression is a group of terms (the terms are separated by + or − signs) |

equation | That equation says: what is on the left (x + 2) is equal to what is on the right (6) So an equation is like a statement "this equals that" |

distributive properties |

Created by:
Chase.Wassel