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# Algebra 2 Ch. 1

### Ch.1

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

Order of Operations | P : Parentheses E : Exponents M : Multiplication D : Division A : Addition S : Subtraction |

Independent and Dependent Variables | A function is a correspondence or pairing between two variables such that each value of the first (independent) variable corresponds to exactly one value of the second (dependent) variable.. |

f(x) notation | X and Y variables can become to confusing so that is why f(x) notation is used. |

Finding Domain and Range from a Graph | Domain: the set of allowable values for the independent variable. Range: set of values of the dependent variable that result from all possible substitutions for the independent variable. |

Definition of a Function | A function is a relation in which no two different ordered pairs have the same first coordinate. |

Vertical Line Test for Functions | No vertical line intersects the graph of a function in more than one point. |

Distributive Property | For all real numbers a, b, and c, c( a + b ) = ca + cb |

Recursive Formula | ex: First Term = 40 New Term = previous term divided by 2 for all terms after the first |

Explicit Formula | Found by plugging in the nth term ex: Tn = 3n |

Clearing Fractions | To clear fractions in an equation multiply them all by a common denominator. |

Created by:
Nickp2396