Here is the question i was given.
If y is a function of x, which of the following cannot be true?
Options. SELECT 1
A.When x = 3 and x = 7, then y = 2.
B.When x = 3, then y = 7 and y = 2.
C.When x = 3, then y = 0, and when x = 0, then y is undefined.
D.When x = 3, and x = 7, then y is undefined.
