| A | B |
|---|
| a set of ordered pairs | relation |
| the first coordinate in the ordered pair | domain |
| the set of second coordinates | range |
| a relation that assigns exactly one value in the range to each value in the domain | function |
| if any vertical line passes through more than one point of the graph, the relation is not a funcion | vertical line test |
| an equation that describes a function | function rule |
| when you use f(x) to indicate the outputs | function notation |
| independent variable | the inputs (x) |
| dependent variable | the outputs (y) |
| direct variation | y=kx |
| constant of variation | k |
| directions: find the domain and range in the following set of data | list the numbers in order |
| directions: determine whether each relation is a function | use a mapping diagram and see if any number repeats itself in the set of coordinates |
| Evaluate f(n)=-3n-10 n=6 | fill in 6 for the n(s) in the equation and get the number |
| mirror image | identity |
| #'s on both sides of the equation not equal | no solution |
| variable on one side/ # on other side is zero | solution |
| a comparison of two numbers by division | ratio |
