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If f(x) = (x^2 - 9)/(x - 3) for x not 3 and f(3) = k is continuous, k is
A0
B3
C9
D6
Answer & Solution
Correct answer: D. 6
For x not 3, f(x) = x + 3, so the limit at 3 is 6 and k must be 6.
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