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# ch 1

### functions

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

what is an algebraic expression? | When numbers and variables are combined using the operations of arithmetic. |

what is a function? | A corresponding or pairing between two variables such that each value of the first variable corresponds to exactly one value of the second variable. |

Write a recursive definition for the following sequence.. 6,15,24,33,42.. | t1=6 tn=tn-1 + 9 |

if p(x)=2x^3+5x^2-5x, find p(4). | 128 |

solve 8(3x + 6) = 264 | x=9 |

State the distributive property. | For all real numbers a, b, and c, c(a + b) = ca+cb |

State the opposite of a sum theorem. | For all real numbers a and b, -(a + b) = -a + -b. |

Solve 2/5x - 3/4x = 7/20x | x=15 |

Created by:
nikkrowley