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# Math 7 Ch 3 Vocab

### Review of directions with terms

Directions | Steps |
---|---|

Complete each function table | Organize the x-value, the function rule, and the solution into a table. |

Graph each equation/ function | Make a function table and use 3 carefully selected constants to find coordinates of a line on a plane. |

Find the perimeter | A method of finding the number of units are in the distance around a figure. |

Find the area | Use the formula A = l x w to find how may square units cover a surface. |

Solve the equation | Use inverse operations to find the constant that will make an equation true. |

Check your solution | A mathematical proof used to verify your solution. |

Write the original equation | The first step in checking your solution. |

Write the equation | The first step in finding a solution. |

Solve each equation using models or a drawing | A way to justify a solution using pictorial representations such as number lines, counters, or algebra tiles. |

Describe in words each step shown for solving the equation | Another way to say "justify your solution" or "explain your steps". |

Commutative property of addition or multiplication | Used to justify a step in a solution where moving like terms together is an advantage. a + b + c = a + c + b or a x b x c = a x c x b |

Associative property of addition or multiplication | Used to justify a step in a solution to show which computation will be performed next. a + (b + c) = (a + b) + c or a x (b x c) = (a x b) x c |

Identity property | Used to justify a step in a solution where a x 1 = a or when a + 0 = a. |

Write each phrase as an algebraic expression | Convert words to a number sentence containing constants, variables and at leas one mathematical operation. |

Write each phrase as an algebraic equation | Convert words into a number sentence containing an equals sign,, constants, variables, and at least one mathematical operation. |

Subtraction property of equality | An inverse operation step used when solving an addition algebraic equation. |

Addition property of equality | An inverse operation used when solving a subtraction algebraic equation. |

Multiplication property of equality | An inverse operation used when solving a division algebraic equation |

Division property of equality | An inverse operation used when solving a multiplication algebraic equation. |

Combine like terms | Using the commutative property and integer operations to simplify expressions with a variety of terms having simlar coefficeints ad constants. |

Coefficient | The constant in an algebraic expression. |

Variable | The term that can change in an algebraic expression. Usually represented by lowercase letter. |

Created by:
MathSamurai678