If f : X -> Y and a, b &sube; X, then f (a ∩ b) is equal to

a proper subset of f(a) ∩ f(b)

If f : X -> Y and a, b ⊆ X, then f (a ∩ b)�

1.	If  f : X -> Y and a, b  &sube; X, then f (a  ∩ b) is equal to
A.	f(a) - f(b)
B.	f(a) ∩ f(b)
C.	a proper subset of f(a) ∩ f(b)
D.	f(b) - f(a)
Answer» D. f(b) - f(a)

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&nbsp;If&nbsp;&nbsp;f&nbsp;:&nbsp;X&nbsp;-&gt;&nbsp;Y&nbsp;and&nbsp;a,&nbsp;b&nbsp;&nbsp;&sube;&nbsp;X,&nbsp;then&nbsp;f&nbsp;(a&nbsp;&nbsp;&cap;&nbsp;b)&nbsp;is&nbsp;equal&nbsp;to

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If f : X -> Y and a, b &sube; X, then f (a ∩ b) is equal to