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# SAT Math Vocab

### Best damn SAT Learning anywhere

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

Sum | The answer to an addition problem. |

Quotient | The answer to a division problem. |

Difference | The answer to a subtraction problem. |

Product | The answer to a multiplication problem. |

Variable | An unknown represented by a letter (X, N) |

Coeffecient | The number that is next to the variable (4X; it's the 4) |

Odd number | Ends in 1,3,5,7,9 |

Even number | ends in 2,4,6,8,0 |

Prime number | Only divisible by 1 and itself (7, 23, 37) |

Integer | A number without a decimal (3, -27, 11, 13) |

Twice a number | 2P |

4 less than a number | P-4 |

Composite number | A number divided by MORE than just 1 and itself |

Numerator | Top number of a fraction |

Denominator | Bottom number a fraction |

Reciprocal | A fraction that flipped upside down (3/7.......7/3) (1/4.......4) |

Consecutive integer | sequential number 7,8 |

Odd consecutive integers | sequential odds (5,7,9,11) |

Even consecutive integers | sequential even (6,8,10,12) |

Ordered Pair | (X,Y) grouped together (5, -8) |

Factor | A number that multiplies into a number (20....2,10, 1,20, 4,5) |

Multiple | A number that when you multiply the original number it will go into (7....7, 14, 21, 28) |

Pi | 3.14 |

Area of a circle formula | pi x r (squared) |

Circumference of a circle formula | 2 x pi x r |

Area of a rectangle | length x width |

Area of a squre | side (squared) |

Area of a triangle | 1/2 base x height |

Pythagorean Theorem | a^2 + b^2 = c^2 |

Mean | The average of a group of numbers |

Median | The middle of a group of numbers (3,4, 5, 5, 5, 7, 8) Median =5 |

Equation of the line formula | Y=mx+b |

Slope of the line | m |

y-intercept | b |

Positive slope | goes slanting up |

Negative slope | goes slanting down (right) |

0 slope | Horizontal line |

Undefined slope | Vertical line |

Two point slope formula | (Y2-Y1/X2-X1) |

Plot slope | rise over run |

Ratio | A comparison of two numbers; notations include the use of fractions or colons |