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Mathematics>Standard Multiple Choice
Read the following SAT test question and then click on a button to select your answer.
If the function f is defined by f(x)=(x-a)(x-b)/(x-c), where 0<a<b<c, for which of the following values of x is f undefined?
I.a
II.b
III.c
(A) None
(B) I only
(C) III only
(D) I and II only
(E) I,II and III
