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# Algebra Vocabulary 1

### Quick Start Vocab

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

Variables | symbols, usually letters, used to represent unknown quantities. |

Algebraic Expressions | expressions that contain at least one variable |

Monomial | an algebraic expression that is a number, a variable, or the product of a number and one or more variables.(5,3x,3x2y2,8x2y3) |

Monomials Cannot Contain..... | variables in the denominator 1/n2(squared) variables with exponents that are negative a-1(-1 is "a" multiplied by "-a") and variables under radicals. |

Terms | The monomials that make up a polynomial |

Polynomial | monomial or a sum of monomials |

Binomial | a polynomial that has 2 unlike terms |

Trinomial | a polynomial that has 3 unlike terms |

Constants | monomials that contain no variables. Ex. 24 or -6 |

Coefficient | the numerical factor of a monomial Ex. the 4 in 4m |

Degree of a Monomial | the sum of the exponents of its variables Ex. the degree of 9m3n4 is 7 (3+4=7 *the degree of a constant is 0. |

Power | expression of the form xn (n is the power) (power is also used to refer to the exponent itself). |

Real Numbers | all numbers used in everyday life; the set of all rational and irrational numbers. |

Rational Numbers | Any number m/n ("m" over "n"), where "m" and "n"are integers and n is not a zero. The decimal form is either a terminating or repeating decimal. |

Irrational | a real number that is not rational. The decimal form niether terminates nor repeats. |

Created by:
Mollydog