SME
Grade 8 Math · Problem type
Function or not?
Use this for “Is a student’s age a function of the student? Is the student a function of the age?”
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Is the output a function of the input?
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Assumptions
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A function gives each input exactly one output.
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Two inputs may share an output; one input may not have two outputs.
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On a graph: a vertical line that crosses twice means not a function.
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