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Domain and Range
Is it a function?
100
In (1, 2), (3, 4), (-1, 0); it is 1, 3, and 0.
What is the domain? OR What are the inputs?
100
In this relation, (1, 2), (0, 4) and (5, 5) you know it is the reason it is a function.
What is because every input has exactly one output? OR What is because every input or x-coordinate is used only once?
200
In (1, 2), (3, 4), (-1, 0); it is 2, 4, and 0.
What is the range? OR What are the outputs?
200
In this relation, (2, 3), (4, 8), and (2, 7) you know it is not a function for this reason.
What is because one input has more than one output? OR What is because the x-coordinate 2 is used more than once?
300
This is another name for the x-coordinates in the domain.
What is input?
300
In this relation, (4, 0), (5, 0), and (6, 0) you would know it is a function for this reason.
What is because every input has exactly one output? OR What is because each x-coordinate is used only once?
400
This is another name for the y-coordinates in the range.
What is output?
400
In the relation (4, 6), (4, 9), (4, 2) you would know it is NOT a relation for this reason.
What is because the inputs have more than one output? OR What is because the x-coordinate 4 is used more than once?
500
This is when every input has exactly one output.
What is a function?
500
If a relation is graphed on a coordinate graph, this test could help you decide if it is a function or not.
What is the vertical line test?