UPSKILL MATH PLUS

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Answer variants:
\(f(\)\(r\)\()\) \(=\) \(2\)\(s\) \(+\) \(3\)
\(f(\)\(r\)\()\) \(=\) \(9\)
\(f(\)\(r\)\()\) \(=\) \(r\)
Sort the functions into their types.
 
Column A
Column B
Constant function
 
Identity function
 
Real-valued function