Question 967124
Which of the following is a function:
 A. The height of a student in your school is related to the shoe size of that student.
No because a given shoe size might have several students with different heights.
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 B. The hair length of the student in your school is related to the height of the student.
No because a given height might have students with several different hair lengths.
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C. The color of hair of a student in your school related to the age of the student
No because a given age might have several students who have different colored hair.
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D. The student ID number of a student in your school related to the full name
 of that student.
Yes, because each full name has one student ID number.
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Cheers,
Stan H.