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# Math

### Finals

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

Origin | the ordered pair (0,0) |

expression | the mathematical phrase that contains one or more variables |

reciprocal | two numbers whose product is one |

integers | whole numbers and their opposites |

rational | a number that can be expressed as a ratio |

coefficient | the number of a part term |

constant | a term that can be expressed as a ratio |

whole numbers | natural numbers and zero |

equation | sets two expressions equal |

base | in the expression 4^5, the 4 |

set | a collection of objects |

variable | a letter that that represents a number |

absolute value | the distance from zero |

like terms | terms that differ only by their coefficients |

complement | all the members of the universal set that are not members of a given set |

counter example | an example that shows a statement is false |

evaluate | substitute a value for each variable and perform the operations. |

distribute | the property that says 4(x+2) =4x+8 |

opposites | two numbers that sum to zero |

exponents | tells the number of times the base is used as a factor |

unit rate | a rate whose denominator is one |

cross products | in a proportion, these are equal |

ratio | a comparison of two equalities with the same units |

dimensional analysis | a process to do conversions, using the units as a help |

percent change | the ratio of the difference between an original and new amount and the original amount expressed as a percent |

conversion factor | the number one expressed as a ratio of two equivalent measurements in different units |

proportion | an equation that sets two rates/ratios equal |

solution | a value that makes an equation true |

percent error | ratio of the error in a measurement to the actual measurement expressed as a percent |

percent | per 100 |

scale | a ratio that tells how the distances on a drawing and the actual distances are related |

identity | an equation that is true for all values of the variable |

rate | comparison of two quantities with different units |

slope | the ratio of rise and run |

x coordinate | the value that tells you how far from the origin a point is on the horizontal, or x-axis |

discreet data | data you can count |

linear function | a function that has a constant difference in the dependent variable |

slope intercept | the form of a line that is used y=mx+b |

domain | the input values of a mathematical relation |

relation | a _____ maps the domain elements to the rage elements |

dependent | the variable graphed on the vertical axis, output |

discreet data | a function in the form of y=mx+b |

point slope | the form of a linear equation that shows the slope of the line and one point on the line. |

continuous data | numbers between any two data points have meaning |

range | the output values of a mathematical relation |

y intercept | In coordinate geometry, using the common convention that the horizontal axis represents a variable x and the vertical axis represents a variable y, a y-intercept is a point where the graph of a function or relation intersects with the y-axis of the coordi |

function notation | f(x), the formal way of writing y |

y coordinate | the value that tells you how far from the origin a point is on the vertical, or y-axis |

function | a relation that maps each domain element or input to exactly one range element of output |

vertical line test | a way to tell if the graph of a relation is a function |

independent | the variable graphed on the horizontal axis, output |

point slope | the value of x when y=kx |