Question

If y = f : A $\to$ B, then which of the following is true if f(x) is a function in x.

(i) x must be able to take each and every value of A

(ii) one value of x must be related to one and only one value of y in set B.

• A. Only (i)
• B. Only (ii)
• C. Both (i) and (ii)
• D. None of these

Answer 1

The correct option is C

Both (i) and (ii)

Both (i) and (ii) are part of the definition of function.( (i) and (ii) together forms the definition of function)