Which is a valid explanation of (?X/?Y)_Z?
A. The independent variable X is being changed to observe the effect on dependent variable Y, while variable Z is kept constant.
B. The independent variable Y is being changed to observe the effect on dependent variable X, while variable Z is kept constant.
C. The independent variable Y, which is part of function Z, is being changed to observe the effect on dependent variable X.
D. The independent variable X is being changed Z number of times to observe the effect on dependent variable Y.
E. None of these are correct.
A. Incorrect. You have confused the meanings of the numerator and denominator.
B. Correct. This is partial differential notation in words.
C. Incorrect. If this was the case, the notation would be written as Z(X, Y) = (…).
D. Incorrect. You may be thinking of summation notation.
E. Incorrect. One of these statements correctly describes this term.
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