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Functions Vocabulary
function vocabulary
Term | Definition |
---|---|
Relation | A set of ordered pairs |
Function | A relation that each domain element with EXACTLY ONE range element - each input has one output |
Independent Variable | In a function, the "x" variable, or input, which can take on any value you choose |
Dependent Variable | In a function, the "y" variable, or output, which happens as a result of the function |
Domain | The set of all inputs or "x" values |
Range | The set of all outputs or "y" values |
Continuous | A function all in one piece, with no breaks or gaps |
Discrete | A function with individual, distinct points |
Vertical Line Test | If a vertical line NEVER touches the graph of a relation in more than one place, then it is a function, because all of the inputs have EXACTLY ONE output |