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# CRCT Cheat Sheet

### Cheat Sheet

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

11 squared | 121 |

12 squared | 144 |

13 squared | 169 |

14 squared | 196 |

15 squared | 225 |

16 squared | 256 |

17 squared | 289 |

18 squared | 324 |

19 squared | 361 |

20 squared | 400 |

21 squared | 441 |

22 squared | 484 |

23 squared | 529 |

24 squared | 576 |

25 squared | 625 |

2^-3 | Move |

2^3 times 2^4 | Add the exponents |

(2^3)^4 | Multiply the exponents |

How would you graph? > | Open Shade above |

How would you graph? ≤ | Closed Shade below |

How would you graph? < | Open Shade below |

How would you graph? ≥ | Closed Shade above |

∪ What does this symbol mean? | Union All |

∩ What does this symbol mean? | Intersection Same |

⊂ What does this symbol mean? | Subset Part of the set |

∈ What does this symbol mean? | Element One thing in the set |

How do you know if the relation is a function? | Because the x (domain or input) doesn't repeat. Passes the vertical line test |

What are irrational numbers? | ∏ and √imperfect The decimal doesn't stop or have a pattern. |

y = mx + b What does the m stand for? | Slope or Rate of Change |

y = mx + b What does the b stand for? | Y-Intercept or Start Number |

Created by:
mathisgreen
on 2011-03-16