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# Expression/Equations

### EOG Review

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

Power | Composed of a base and an exponent |

Exponent | Tells you how many times to multiply the base |

Base | Tells you what number is being multiplied |

Scientific Notation | Scientific notation is the way that scientists easily handle very large numbers or very small numbers. For example, instead of writing 0.0000000056, we write 5.6 x 10-9. |

Standard Form | To change a number from scientific notation to standard form, move the decimal point to the left (if the exponent of ten is a negative number), or to the right (if the exponent is positive). |

Coefficients | The numbers written in front of the variable |

Distributive Property | The Distributive Property is an algebra property which is used to multiply a single term and two or more terms inside a set of parentheses. |

Like Terms | Terms that have the same variable and/or exponent |

Substitution | Replacement of a variable with a number or expression |

Solution | Answer to a problem that makes it true |

No Solution | Answer that does not make the problem true |

Infinitely (many solutions) | Solution to a problem where both sides of the equal sign are equivalent |

Intersecting Lines | Lines that cross in one location (slopes and y-intercepts are different) |

Parallel Lines | Lines that run side by side and never touch (same slope/different y-intercepts) |

Coinciding Lines | Two lines that overlap each other (slopes and y-intercepts are the same) |