Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# Test 7 Review

### Expressions

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

Expression | a mathematical combination of numbers, variables, and operations; does not contain an equal sign! Examples: 5 + 23, 4x, 6x + y^2 |

Constant | a term that does not contain a variable. For example, 5 is the constant in the expression -2x + 5. |

Variable | a letter or other symbol used to represent an unspecified number or value. For example, x is the variable in the expression -2x + 5. |

Coefficient | the numerical factor of a term; the number being multiplied by the variable. For example, -2 is the coefficient in the expression -2x + 5. |

Term | a number, a variable, or a product or quotient of numbers and variables; terms are separated by addition or subtraction signs. For example, the expression -6 + 4y - 15m has three terms (-6, 4y, and -15m). |

Like Terms | terms that contain the same variables raised to the same power; for example, 5x and 3x are like terms |

Distributive Property | to multiply a sum by a number, multiply each addend of the sum by the number outside the parentheses. |

Standard Form of an Expression | an expression in simplest terms; all like terms are combined |

Constant of Proportionality | the constant ratio to which a proportional relationship simplifies |

Created by:
Math7