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# Math Mid-Term

### Math Mid-Term Formula's

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

What Are Integers? | Whole Numbers |

What is a Rational Number? | A number that can be written as a fraction |

What is a Irrational Number? | A number that cannot be written as a fraction |

What is i2 equivalent to? | -1 |

What Formula is used to Find Slope? | (y2-y1)-(x2-x1) |

What is the Formula for "Point-Slope-Form"? | y-y1=m(x-x1) m=slope |

What does "m" represent? | Slope |

How do you find "Negative Recipricle's"? | Flip Slope and also Flip +/- Sign to Opposite EX: 5/2 has a "Negative Recipricle" of -2/5 |

What is the Equation for a Line? | y=mx+b |

What is a "Perfect Square"? | EX: x2+49=(x+7)(x+7) |

What is the formula for "Quadratic Formula"? | (-b+/-√b2-4(a)(c))/2(a) |

What is the "Discriminant" | √b2-4(a)(c) |

If the Discriminant is greater than 0, then it has __ _______ Answer(s). | 2 Real Answers |

If the Discriminant is equal to 0, then it has __ _______ Answer(s). | 1 Real Answer |

If the Discriminant is less than 0, then it has __ _______ Answer(s). | 2 Imaginary Answers |

How do you find out if a graph is a "Function" | The Vertical Line Test |

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