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Math 8
| Term | Definition |
|---|---|
| Function | a set of ordered pairs in which none of the first elements of the pairs appears twice. |
| Relation | A set of ordered pairs. |
| Input | A set of X values |
| Output | A set of Y values |
| Independent Variable | A variable that can change its value freely and without being affected by any other variable(s) for its value. |
| Dependent Variable | The output number of a function |
| Domain | The set of all possible input values for a function or relation. |
| Range | The set of all possible values for the output of the function. |
| Common Difference | The constant difference between any two successive terms in an arithmetic sequence. |
| Coordinate Plane | A plane formed by two intersecting and perpendicular number lines used to help locate the position of any point on a map or graph. |
| Vertical Line Test | A method used to check whether or not a relation is a function. |
| Evaluate | To calculate the value of. |
| Function Notation | is essentially replacing "y = " in your equations with "f(x) =". |
| Linear Function | A function of the type y = f(x) = ax + b because its graph is a straight line. |