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# ND 8 Algebra Midterm

### Vocab for ND Beth 8th Grade Algebra Midterm

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

a symbol used to represent 1 or more numbers in a mathematical expression or equation | variable |

a mathematical expression containing one or more variables | variable expression |

a mathematical expression containing only numerals (no variables) | numerical expression |

combine like terms, perform operations, etc. to reach simplest form | simplify an expression |

replace variable(s) with given value(s) and simplify | evaluate an expression |

formed by placing an equals sign between two numerical or variable expressions | equation |

equations or inequalities containing variables | open sentence |

the given set of numbers the variable may represent | domain of a variable |

a value of a variable that converts an open sentence into a true statement | solution |

a solution of the sentence | root of an equation |

find the solution set of an open sentence over a given domain | solve and equation |

the zero point on a number line, the zero point of the intersecting axes in a number plane | origin |

a number paired with a point on the positive side of a number line | positive integer |

a number paired with a point on the negative song of a number line | negative integer |

the numbers in the set {...-3, -2, -1, 0, 1, 2, 3...} | integers |

the set made up of the positive integers and zero {0, 1, 2, 3...} | whole numbers |

the point on a number line paired with a number | graph of a number |

the number paired with a point on the number line | coordinate |

the number that when added to the given number, equals zero | opposite |

the distance between the different number and the origin | absolute value |

the number that when added to the given number, equals zero (*opposite) | additive inverse |

a number that tells how many times to use the base as a factor | exponent |

one of the equal factors. In b^n, it is b. | base |

exponential expressions such as 3^2 and 3^4 are these of 3. | power |

an expression that is either a numeral, a variable, or a product of a numeral and one or more variables | monomial |

a polynomial of two terms | binomial |

a polynomial of three terms | trinomial |

a sum of monomials | polynomial |

a numerical term with no variable expression | constant |

terms that are exactly alike or that differ only in their numerical coefficients | similar terms (like terms) |

the number of times that a variable occurs as a factor in a monomial is the degree of the monomial in that variable. The sum of the degrees in each of the variables is the degree of the monomial. A non-zero constant has a degree of 0. Zero has no degree. | degree of a monomial |

the greatest of the degrees of its terms after it has been simplified | degree of a polynomial |

a term used to describe motion of an object when it moves without changing its speed or rate (distance=rate x time)(d=rt) | uniform motion |

Created by:
hunoni