The Basics (Junior Cert Mathematics): Flashcards
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12 cards from this deck
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Practise the cards
12 cards from this deck
3 ways to write a function (example: )
3 ways to write a function (example: )
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What function notation describes
What function notation describes
A rule that transforms an input into an output
What mapping diagrams show
What mapping diagrams show
How a function connects each input to exactly one output
What arrows represent in mapping diagrams
What arrows represent in mapping diagrams
How each input maps to its corresponding output
How many outputs each input maps to in a function
How many outputs each input maps to in a function
Exactly one output
Domain definition
Domain definition
The set of input numbers
Range definition
Range definition
The set of output numbers
Rule for a relation to be a function
Rule for a relation to be a function
Each input must be connected to only one output
If an input has 2 arrows to different outputs
If an input has 2 arrows to different outputs
The relation is not a function
Number of arrows per input in a function diagram
Number of arrows per input in a function diagram
Only one arrow
What makes a relation NOT a function
What makes a relation NOT a function
An input connected to more than one output
Key characteristic of functions with same input
Key characteristic of functions with same input
Always get the same result/output